Synonyms and Antonyms of clam up
to stop talking the little girl clammed up when the doctor came into the room Synonyms belt up [British], shut up, dry up, dummy up, hush, pipe down, quiet (down)Related Words calm (down), cool (down), settle (down); haw, hemNear Antonyms pipe up, sound off, speak out, speak up, spout (off), talk upAntonyms speak, talk
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