Main entry: informal
Definition: not formal
Usage: conservative people unaccustomed to informal dress; an informal free-and-easy manner; an informal gathering of friends
Main entry: informal
Definition: used of spoken and written language
Main entry: cozy, informal, intimate
Definition: having or fostering a warm or friendly and informal atmosphere
Usage: had a cozy chat; a relaxed informal manner; an intimate cocktail lounge; the small room was cozy and intimate
Definition: not officially recognized or controlled
Usage: an informal agreement; a loose organization of the local farmers