Synonyms of informal in English:

informal

adjective

  • 3 the guys wore very informal clothes
    casual, relaxed, comfortable, everyday, sloppy, leisure; French sportif
    informal comfy, laid-back, sporty
    the guys wore very informal clothes
    [Antonyms] formal smart

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Word of the day astrogation
Pronunciation: ˌastrə(ʊ)ˈgeɪʃ(ə)n
noun
(in science fiction) navigation in outer space