Antonyms for informal
ɪnˈfɔr məlin·for·mal

Princeton's WordNetRate these antonyms:0.0 / 0 votes

1. informaladjective

   not formal

   "conservative people unaccustomed to informal dress"; "an informal free-and-easy manner"; "an informal gathering of friends"

   Antonyms:
   black-tie, semiformal, buckram, formal, titular, literary, ceremonial, pro forma, dress, full-dress, semi-formal, official, starchy, ceremonious, prescribed, unfriendly, nominal, conventional, perfunctory, white-tie, positive, form-only(a), stiff

   Synonyms:
   cozy, loose, intimate

2. informal, looseadjective

   not officially recognized or controlled

   "an informal agreement"; "a loose organization of the local farmers"

   Antonyms:
   positive, semiformal, buckram, full-dress, ceremonious, starchy, form-only(a), formal, white-tie, titular, unfriendly, conventional, semi-formal, literary, ceremonial, dress, prescribed, perfunctory, official, black-tie, nominal, stiff, pro forma

   Synonyms:
   idle, loose, sluttish, easy, wanton, cozy, escaped, liberal, free, open, lax, intimate, unaffixed, on the loose(p), light, slack, promiscuous, at large(p)

3. informaladjective

   used of spoken and written language

   Antonyms:
   form-only(a), ceremonial, official, pro forma, buckram, unfriendly, conventional, prescribed, stiff, dress, formal, white-tie, semiformal, literary, nominal, ceremonious, starchy, full-dress, positive, perfunctory, black-tie, titular, semi-formal

   Synonyms:
   cozy, loose, intimate

4. cozy, intimate, informaladjective

   having or fostering a warm or friendly and informal atmosphere

   "had a cozy chat"; "a relaxed informal manner"; "an intimate cocktail lounge"; "the small room was cozy and intimate"

   Antonyms:
   conventional, black-tie, starchy, buckram, nominal, pro forma, formal, official, perfunctory, semiformal, ceremonial, positive, unfriendly, ceremonious, form-only(a), white-tie, literary, titular, full-dress, prescribed, stiff, dress, semi-formal

   Synonyms:
   internal, familiar, knowledgeable, cozy, loose, intimate, versed, cosy, sexual, inner, snug

Synonyms, Antonyms & Associated WordsRate these synonyms:3.0 / 1 vote

1. informaladjective

   Synonyms:
   unceremonious, unconventional, easy, natural, unconstrained

How to use informal in a sentence?

1. David Sabatini:

   A mischaracterization of an informal workplace that is populated by people with MDs and PhDs who are in their 20s and 30s who are, you know, underpaid and together long hours and it’s just not a viper pit of sexual harassment the way that the Whitehead statement made it sound.

2. Hans Lammers:

   It is an informal exchange.

3. Ian Woodward:

   Communicating directly in real language that people can understand, it's not standing from up on high or at a distance, it's like talking to your friend. Much more informal and conversational language.

4. Srikanth Kondapalli:

   The second informal meeting as such is significant given these ominous signals at bilateral, regional and global levels, stabilizing relations is important as both are seized with a number of issues – domestic as well as regional.

5. Muda Yusuf:

   These measures are not likely to trickle down to people in the informal sector.

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