accidentally

ac·ci·den·tal  (ks-dntl)

adj.

1. Occurring unexpectedly, unintentionally, or by chance.

2. Music Of or relating to an accidental.

n.

1. A property, factor, or attribute that is not essential.

2. Music

a. Any of various signs that indicate the alteration of a note by one or two semitones or the cancellation of a previous sign.

b. A note that has been marked with such a sign.

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acci·dental·ly, acci·dently adv.

acci·dental·ness n.

Synonyms: accidental, fortuitous, contingent, incidental, adventitious
These adjectives apply to what happens unintentionally. Accidental primarily refers to what occurs by chance: an accidental meeting.
It can also mean subordinate or nonessential: "Poetry is something to which words are the accidental, not by any means the essential form" (Frederick W. Robertson).
Fortuitous stresses chance even more strongly: "the happy combination of fortuitous circumstances" (Sir Walter Scott).
Contingent describes what is possible but uncertain because of unforeseen or uncontrollable factors: "The results of confession were not contingent, they were certain" (George Eliot).
Incidental refers to a minor or unanticipated result or accompaniment: "There is scarcely any practice which is so corrupt as not to produce some incidental good" (Enoch Mellor).
Adventitious applies to something acquired or added externally, sometimes by accident or chance: "The court tries to understand 'whether the young man's misconduct was adventitious or the result of some serious flaw in his character'" (Harry F. Rosenthal).

Thesaurus

Adv.	1.	accidentally - without advance planning; "they met accidentally" unexpectedly, by chance, circumstantially advisedly, by choice, by design, deliberately, designedly, intentionally, on purpose, purposely - with intention; in an intentional manner; "he used that word intentionally"; "I did this by choice"
	2.	accidentally - of a minor or subordinate nature; "these magnificent achievements were only incidentally influenced by Oriental models" incidentally
	3.	accidentally - without intention; in an unintentional manner; "she hit him unintentionally" unintentionally advisedly, by choice, by design, deliberately, designedly, intentionally, on purpose, purposely - with intention; in an intentional manner; "he used that word intentionally"; "I did this by choice"

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accidentally

adverb unintentionally, casually, unexpectedly, incidentally, by accident, by chance, inadvertently, unwittingly, randomly, unconsciously, by mistake, haphazardly, fortuitously, adventitiously The door cannot be opened accidentally.
deliberately, consciously, on purpose, wilfully, by design, designedly

Translations

accidentally [ˌæksɪˈdentəlɪ] ADV

1. (= by chance) → por casualidad
we met quite accidentally → nos encontramos por pura casualidad

2. (= unintentionally) → sin querer, involuntariamente
he was accidentally killed → fue muerto por accidente
the liquids were accidentally mixed → los líquidos se mezclaron por descuido
accidentally on purpose → sin querer y no tan sin querer

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accidentally [ˌæksɪˈdɛnt^əli] adv

(= by accident) → accidentellement

(= by chance) [meet, discover] → accidentellement, par hasard
accident and emergency accident and emergency department (British) n → service m des urgences, urgences fpl
accident blackspot [ˈblækspɒt] n → point m noir
accident insurance n → assurance f accidents
accident prone accident-prone [ˈæksɪdəntprəʊn] adj → sujet(te) aux accidents
He's very accident-prone
BUT Il lui arrive toujours des malheurs.

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accidentally

adv (= by chance) → zufällig; (= unintentionally) → versehentlich; accidentally on purpose (hum) → versehentlich-absichtlich (hum)

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accidentally [ˌæksɪˈdɛntəlɪ] adv (by chance) → per caso; (unintentionally) → senza volere, inavvertitamente
accidentally on purpose (fam) → di proposito, ma senza darlo a vedere

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accidentally → بالصُدْفَة náhodně ved et tilfælde versehentlich τυχαία accidentalmente vahingossa accidentellement slučajno accidentalmente 偶然に 우연히 toevallig tilfeldigvis przypadkowo acidentalmente случайно av en händelse โดยบังเอิญ kazara một cách tình cờ 偶然地