Definition of optional
Adjectives
possible but not necessary; left to personal choice
- Synonyms:
-
elective
not compulsory
-
ex gratia
as a favor; not compelled by legal right
-
facultative
not compulsory
-
nonmandatory, nonobligatory
not required by rule or law
- Antonyms:
-
obligatory
morally or legally constraining or binding
-
necessary
absolutely essential
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bounden
morally obligatory
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compulsory, mandatory, required
required by rule
-
de rigueur
required by etiquette or usage or fashion
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imposed
set forth authoritatively as obligatory
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incumbent on
morally binding or necessary
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indispensable
unavoidable
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prerequisite
required as a prior condition or course of study
- show more antonyms...
Vocabulary Lists for optional
J.D. Salinger's "Catcher in the Rye" Chapters 1-14 »(70 words)
Vocabulary study list for J.D. Salinger's "Catcher in...
- ostracize
- reversible
- recuperate
- nonchalant
- rile
Anne Frank's "Diary of a Young Girl" Part 1 »(173 words)
Vocabulary study list for Anne Frank's "Diary of a...
- immigrate
- moodiness
- wangle
- faze
- collapsible