Bedeutung von “informal” im Essential American English Dictionary

informal

adjective us /ɪnˈfɔr·məl/

relaxed and friendly:

an informal meeting

suitable for normal situations:

informal clothes
informal language
→ Opposite formal
informally adverb

We chatted informally (= in a relaxed, friendly way) before the interview.

(Definition von “informal” aus dem Webster's Essential Mini Dictionary © Cambridge University Press)