speechless Synonyms

dumb unable to get a word out strike dumb wordless wonderstruck whist voiceless unheard tongue-tied tongueless thunderstruck taciturn tacit surprised surd stupefied unspoken nonspeaking dumbfounded bereft of speech struck dumb knocked for six unvoiced unexpressed unspeaking gobsmacked uncommunicative dumbstruck flabbergasted lost for words at a loss for words taken aback unuttered stunned startled ineloquent inarticulate goggle-eyed dumfounded dazed confounded awe-struck astounded astonished aphonous aphonic aphasic answerless amazed inobtrusive