informal
adj 1: not formal; "conservative people unaccustomed to informal
dress"; "an informal free-and-easy manner"; "an
informal gathering of friends" [ant: {formal}]
2: not officially recognized or controlled; "an informal
agreement"; "a loose organization of the local farmers"
[syn: {loose}]
3: used of spoken and written language [ant: {formal}]
4: having or fostering a warm or friendly atmosphere;
especially through smallness and informality; "had a cozy
chat"; "a relaxed informal manner"; "an intimate cocktail
lounge"; "the small room was cozy and intimate" [syn: {cozy},
{intimate}]