adjective
Synonyms: silent 3, close-lipped, closemouthed, close-tongued, reserved, reticent, taciturn, tight-lipped, tight-mouthed, uncommunicative
Antonyms: openmouthed
adjective
Synonyms: silent 3, close-lipped, closemouthed, close-tongued, reserved, reticent, taciturn, tight-lipped, tight-mouthed, uncommunicative
Antonyms: openmouthed
Merriam Webster. Collegiate thesaurus English vocabulary. Английский энциклопедический словарь тезаурус. 2003