Thesaurus
informal
adjective
Synonyms and Antonyms of INFORMAL
1
not rigidly following established form, custom, or rules <an informal meeting allowed everyone to get acquainted>
Related Words unauthorized, unofficial; casual, easygoing, familiar, free and easy, lax, loose, offhand, relaxed, ultracasual
Near Antonyms correct, decorous, proper; constrained, inhibited, restrained, rigid, stiff, stuffy, uptight
2
not designed to be worn only on special occasions <chose an informal flowery dress>
Near Antonyms best, Sunday; dressed up; chic, elegant, fashionable, smart, stylish; neat, tidy, trim; semiformal
3
used in or suitable for speech and not formal writing <the use of informal language in a scholarly article is really inappropriate>
Synonyms conversational, informal, nonformal, nonliterary, unbookish, unliterary, vernacular, vulgar
Related Words dialectal, dialectical (also dialectic), nonstandard, regional; incorrect, nongrammatical, substandard, uneducated, ungrammatical, unlearned; slang, slangy
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