optional


Also found in: Thesaurus, Medical, Legal, Financial, Acronyms, Encyclopedia.

op·tion·al

 (ŏp′shə-nəl)
adj.
Left to choice; not compulsory or automatic.

op′tion·al·ly adv.
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.

optional

(ˈɒpʃənəl)
adj
possible but not compulsory; left to personal choice
ˈoptionally adv
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

op•tion•al

(ˈɒp ʃə nl)

adj.
left to one's choice; not required or mandatory: Formal dress is optional.
[1755–65]
op′tion•al•ly, adv.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.optional - possible but not necessary; left to personal choice
obligatory - morally or legally constraining or binding; "attendance is obligatory"; "an obligatory contribution"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

optional

adjective voluntary, open, discretionary, possible, extra, elective, up to the individual, noncompulsory Some people feel sex education should remain an optional school subject.
required, compulsory, mandatory, obligatory, de rigueur (French)
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002

optional

adjective
Not compulsory or automatic:
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.
Translations
volitelný
valgfrivalgfrit
valinnainen
neobavezan
szabadon választhatóválasztható
valfrjáls
自由選択の
자유선택의
nepovinnývoliteľný
izbiren
valfri
ซึ่งเป็นทางเลือก
tùy chọn

optional

[ˈɒpʃənl] ADJ [course, subject] → optativo, facultativo; [part, accessory] → opcional
that is completely optionaleso es completamente opcional
optional extra (Aut) → accesorio m opcional, extra m
"dress optional"no se requiere (ir de) etiqueta
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

optional

[ˈɒpʃənəl] adj
[course, subject] → optionnel(le)
[feature, extra] → en option
optional extras → accessoires mpl en option, options fploptions market nmarché m des options
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

optional

adj (= not compulsory)freiwillig; (= not basic) trim, mirror etcauf Wunsch erhältlich; “evening dress optional„Abendkleidung nicht Vorschrift; “fancy dress optional„kein Kostümzwang“; optional extrasExtras pl; the cigar lighter is an optional extrader Zigarettenanzünder wird auf Wunsch eingebaut; optional subject (Sch, Univ) → Wahlfach nt
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

optional

[ˈɒpʃənl] adj (course, subject, ingredient) → facoltativo/a
optional extra (Comm) → optional m inv
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

option

(ˈopʃən) noun
choice. You have no option but to obey him.
ˈoptional adjective
a matter of choice. Music is optional at our school; an optional subject.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.

optional

اِخْتِيَارِيٌّ volitelný valgfri freiwillig προαιρετικός opcional valinnainen optionnel neobavezan facoltativo 自由選択の 자유선택의 optioneel valgfri opcjonalny opcional необязательный valfri ซึ่งเป็นทางเลือก isteğe bağlı tùy chọn 可选择的
Multilingual Translator © HarperCollins Publishers 2009
References in classic literature ?
However that may be, I have never regretted that cowardice is not optional with me.
There were yet another class of persons--those who were waiting to attend summonses their employers had taken out, which it was optional to the attorney on the opposite side to attend or not--and whose business it was, from time to time, to cry out the opposite attorney's name; to make certain that he was not in attendance without their knowledge.
A nation in which, the thing governing and the thing governed being the same, there is only a permitted authority to enforce an optional obedience.
On Sri Lanka, the committee notes that in the light of article 3 (4) of the Optional Protocol, the Committee recommends that the State party, without delay, establish criminal, civil or administrative liability of legal persons for the offences covered by the Optional Protocol.
Optional holidays include New Year Day, Basant Punchami, Shiv Ratri, Holi, Dulhandi, Shab-e-Mairaj, Good Friday, Holi, Easter, Nauroze and others.
Hyundai Top Safety Pick models include 2019 Hyundai Accent with optional front crash prevention and specific headlights, 2018 Hyundai Elantra GT with optional front crash prevention and specific headlights, 2018 Hyundai IONIQ Hybrid with optional front crash prevention and specific headlights, 2018 Hyundai Tucson with optional front crash prevention and specific headlights.
50-59[degrees]F: short-sleeved shirt and shorts, visor (optional)
Steve Syverson, an assistant vice chancellor at the University of Washington Bothell and co-author of the study, says that the study should reassure institution officials who have decided to make these tests optional.
In fact, the optional service to a certain extent to meet the needs of customers is a stimulating factor, so we assume that the demand is subject to the impact of optional services.
Also, an optional 10.1-inch diagonal HD display and optional Broadcom Crystal HD Enhanced Video Accelerator enables smooth 720p and 1080p HD content playback and video streaming.
An optional high-accuracy power meter function supports the company's 6-GHz PSN50 Sensor with [+ or -]0.16-dB power measurement accuracy.