wordless, anaudic, aphasic, aphonic, breathless, brief, brusque, close, close-lipped, close-tongued, closemouthed, concise, curt, dumb, dumbfounded, dumbstricken, dumbstruck, economical of words, implicit, implied , inarticulate, indisposed to talk, inferred, laconic, mum, mute, quiet, reserved, reticent, short, silent, snug, sparing of words, speechless, stricken dumb, taciturn, terse, tight-lipped, tongue-tied, tongueless, uncommunicative, undeclared, understood, unexpressed, unloquacious, unmentioned, unproclaimed, unpronounced, unpublished, unrecorded, unsaid, unspoken, unsung, untalkative, untalked-of, untold, unuttered, unvoiced, unwritten, voiceless, word-bound