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1. Arousing or apt to arouse suspicion; questionable: suspicious behavior.
2. Tending to suspect; distrustful: a suspicious nature.
3. Expressing suspicion: a suspicious look.

sus·pi′cious·ly adv.
sus·pi′cious·ness n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. exciting or liable to excite suspicion; questionable
2. disposed to suspect something wrong
3. indicative or expressive of suspicion
susˈpiciously adv
susˈpiciousness n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(səˈspɪʃ əs)

1. tending to cause or excite suspicion; questionable: suspicious behavior.
2. inclined to suspect, esp. inclined to suspect evil; distrustful.
3. full of or feeling suspicion.
4. expressing or indicating suspicion: a suspicious glance.
[1300–50; Middle English < Latin suspīciōsus]
sus•pi′cious•ly, adv.
sus•pi′cious•ness, n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.


1. 'doubtful'

If you feel doubtful about something, you are unsure about it or about whether it will happen or be successful.

Do you feel insecure and doubtful about your ability?
It was doubtful he would ever see her again.
2. 'dubious'

If you are dubious about something, you are not sure whether it is the right thing to do.

Alison sounded very dubious.
The men in charge were a bit dubious about taking women on.

If you describe something as dubious, you think it is not completely honest, safe, or reliable.

...his dubious abilities as a teacher.
3. 'suspicious'

If you are suspicious of a person, you do not trust them and think they might be involved in something dishonest or illegal.

I am suspicious of his intentions.
Miss Lenaut had grown suspicious.

If you describe something as suspicious, it suggests behaviour that is dishonest, illegal, or dangerous.

He listened for any suspicious sounds. suspicious circumstances.
Collins COBUILD English Usage © HarperCollins Publishers 1992, 2004, 2011, 2012
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.suspicious - openly distrustful and unwilling to confidesuspicious - openly distrustful and unwilling to confide
distrustful - having or showing distrust; "a man of distrustful nature"; "my other fields of law has made me distrustful of rules of thumb generally"- B.N.Cardozo; "vigilant and distrustful superintendence"- Thomas Jefferson
2.suspicious - not as expected; "there was something fishy about the accident"; "up to some funny business"; "some definitely queer goings-on"; "a shady deal"; "her motives were suspect"; "suspicious behavior"
colloquialism - a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech
questionable - subject to question; "questionable motives"; "a questionable reputation"; "a fire of questionable origin"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


2. suspect, dubious, questionable, funny, doubtful, dodgy (Brit., Austral., & N.Z. informal), queer, irregular, shady (informal), fishy (informal), of doubtful honesty, open to doubt or misconstruction two suspicious-looking characters
suspect straight, above board, beyond suspicion, open, straightforward, upright, unquestionable, not open to question
3. odd, strange, mysterious, dark, dubious, irregular, questionable, murky (informal), shady (informal), fishy Four people have died in suspicious circumstances.
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002


1. Of dubious character:
Informal: fishy.
2. Lacking trust or confidence:
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
مُرْتاب، شاكٌّ في، ظَنونمُريب، مُثير للشَّكمَشْبُوه
kuşkuluşüphe uyandırangüvenmeyen
khả nghi


[səsˈpɪʃəs] ADJ
1. (= mistrustful) [person, nature] → desconfiado; [glance] → receloso
Paul was a suspicious manPaul era un hombre desconfiado
many people are suspicious that the government will reduce benefits furthermucha gente tiene la sospecha de que el gobierno va a reducir aún más los subsidios
to be suspicious about sthdesconfiar de algo
to become or grow suspicious (of sth/sb)empezar a desconfiar (de algo/algn)
that made him suspiciouseso le hizo sospechar
to have a suspicious mindtener una mente desconfiada or recelosa
he is suspicious of visitorsse muestra receloso ante las visitas
2. (= causing suspicion) [person, behaviour, package] → sospechoso
did you see anything suspicious?¿viste algo sospechoso?
it looks very suspicious to meme parece muy sospechoso
is there anything suspicious about the crash?¿hay algo sospechoso acerca del choque?
in suspicious circumstancesen circunstancias sospechosas
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005


[səˈspɪʃəs] adj
(= suspecting wrongdoing) → qui a des soupçons
The police became suspicious → La police commençait à avoir des soupçons.
(= wary) → soupçonneux/euse, méfiant(e)
He was suspicious at first → Il était méfiant au début.
He shot a suspicious glance at me → Il me lança un regard soupçonneux.
to be suspicious of sth [+ reform, motives] → avoir des doutes à propos de qch, trouver qch suspect(e)
(= arousing suspicion) [person, circumstances] → suspect(e)
a suspicious person
BUT un individu louche.
Collins English/French Electronic Resource. © HarperCollins Publishers 2005


(= feeling suspicion)argwöhnisch, misstrauisch (of gegenüber); you have a suspicious mindSie sind aber misstrauisch; to be suspicious about somethingetw mit Misstrauen or Argwohn (geh)betrachten
(= causing suspicion)verdächtig; there were no suspicious circumstanceses gab keine verdächtigen Umstände; he died in suspicious circumstanceser starb unter verdächtigen or zweifelhaften Umständen; the police are treating her death as suspiciousdie Polizei betrachtet ihren Tod als nicht natürlich
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007


[səˈspɪʃəs] adj (causing suspicion) → sospetto/a; (feeling suspicion) suspicious (of)sospettoso/a (di), diffidente (di)
to be suspicious of or about sb/sth → nutrire dei sospetti nei riguardi di qn/qc
that made him suspicious → questo lo ha insospettito
a suspicious character → un(a) tipo/a sospetto/a
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995


(səˈspekt) verb
1. to think (a person etc) guilty. Whom do you suspect (of the crime)?; I suspect him of killing the girl.
2. to distrust. I suspected her motives / air of honesty.
3. to think probable. I suspect that she's trying to hide her true feelings; I began to suspect a plot.
noun (ˈsaspekt)
a person who is thought guilty. There are three possible suspects in this murder case.
not trustworthy. I think his statement is suspect.
suspicion (səˈspiʃən) noun
1. the process of suspecting or being suspected; the/a feeling causing a person to suspect. They looked at each other with suspicion; I have a suspicion that she is not telling the truth.
2. a slight quantity or trace. There was a suspicion of triumph in his tone.
suspicious (səˈspiʃəs) adjective
1. having or showing suspicion. I'm always suspicious of men like him; a suspicious glance.
2. causing or arousing suspicion. suspicious circumstances.
suspiciously (səˈspiʃəsli) adverb
suˈspiciousness noun



etc see suspect
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.


مَشْبُوه podezřívavý mistænksom verdächtig καχύποπτος suspicaz epäilyttävä suspicieux sumnjičav sospetto 疑わしい 수상한 wantrouwend mistenksom podejrzany suspeita, suspeitoso подозрительный misstänkt สงสัย kuşkulu khả nghi 令人怀疑的
Multilingual Translator © HarperCollins Publishers 2009


adj sospechoso; a suspicious mass..una masa sospechosa
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in classic literature ?
"I have searched carefully through the records of the Wizard's actions, and among them I can find but three that appear to have been suspicious. He ate beans with a knife, made three secret visits to old Mombi, and limped slightly on his left foot."
There was not a more suspicious man, nor a more stout.
'Ah, you are suspicious!' cried she, smiling, with a gleam of hope.
Your way of life, however pure your conduct may be -- and I will do you the justice to believe it pure -is a suspicious way of life to all respectable people.
The Trojans were suspicious of the wooden horse and standing round it debated what they ought to do.
Putting this nonsense aside, I have observed a suspicious tendency in the champions to divide into two parties; the one, contending that there are no deserving Poor who prefer death by slow starvation and bitter weather, to the mercies of some Relieving Officers and some Union Houses; the other, admitting that there are such Poor, but denying that they have any cause or reason for what they do.
We was in a sweat to find out what his secret was, but Tom said the best way was not to seem anxious, then likely he would drop into it himself in one of his talks, but if we got to asking questions he would get suspicious and shet up his shell.
Departure From the Sandwich Islands.- Misunderstandings- Miseries of a Suspicious Man.- Arrival at the Columbia - Dangerous Service.
The Englishman attempted to dissuade him, but immediately the black became threatening and abusive, since, like all those who are ignorant, he was suspicious that the intentions of others were always ulterior unless they perfectly coincided with his wishes.
He had been interviewed by all manner of people, had listened to dozens of suspicious stories.
I thought of all the suspicious objects scattered about the room, of the probability that he was only putting this question to try my courage, of the very likely chance that he would shoot me forthwith, if I began to prevaricate.
If I pour out your medicine, I commit a suspicious action--they say I poisoned her in her medicine.