in
for
mal
Comparative
more informal
Superlative
most informal
1
suitable for friendly, relaxed, casual, or unofficial occasions and situations
- The club had an informal dress code, so jeans and t-shirts were acceptable.
- The language in text messages is usually quite informal.
- The music festival had an informal atmosphere where everyone could relax.
- The party was an informal gathering of friends.
- The staff had an informal celebration to mark the end of the project.
Antonyms:
2
not officially recognized or controlled
Synonyms: