- (UK) IPA (key): /ɪnˈfɔːm(ə)l/
- (US) IPA (key): /ɪnˈfɔrm(ə)l/
- Hyphenation: in‧for‧mal
- If something is informal, it is friendly and casual; it is not official.
- Can we get together for some informal talks before the meeting?
- School is generally quite informal. Many students even call their teacher by their first name.