Synonym word of most tight lipped:

buttoned up, clammed up, closemouthed, dumb, hushed, mum, mute, muted, not talkative, quiet, reserved, restrained, reticent, secretive, taciturn, tongue-tied, zipped


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Synonyms:  A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Popular