Definitions

1. adjective

lacking a formal or official quality; casual or unconventional in style, language, or manner.

“The company’s informal dress code made the office feel more relaxed.”

2. noun

a social occasion or event that is not formal, such as a party or a gathering.

“The informal dinner party was a great opportunity to catch up with friends.”

3. adverb

in a casual or unconventional way.

“She spoke informally to the crowd, making them feel at ease.”