Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Thesaurus

informal

adjective

Synonyms and Antonyms of informal

  1. 1 not rigidly following established form, custom, or rules <an informal meeting allowed everyone to get acquainted> Synonyms heterodox, irregular, unceremonious, unconventional, unorthodox 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 Antonyms ceremonial, ceremonious, conventional, formal, orthodox, regular, routine

  2. 2 not designed to be worn only on special occasions <chose an informal flowery dress> Synonyms everyday, casual, workadayRelated Words dégagé, relaxed, sporty; dressed down; shabby, sloppy, slovenly, unkemptNear Antonyms best, Sunday; dressed up; chic, elegant, fashionable, smart, stylish; neat, tidy, trim; semiformalAntonyms dressy, formal, noncasual

  3. 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, colloquial, nonformal, nonliterary, unbookish, unliterary, vernacular, vulgarRelated Words dialectal, dialectical (also dialectic), nonstandard, regional; incorrect, nongrammatical, substandard, uneducated, ungrammatical, unlearned; slang, slangyNear Antonyms standard, undialectical; correct, educated, genteel, grammatical, properAntonyms bookish, formal, learned, literary





Seen and Heard

What made you want to look up informal? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to defraud especially of money

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image567572573

Which of these is a synonym of unctuous?

maudlin oily angry prompt
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ