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English definition of “speechless”

speechless

adjective     /ˈspiːtʃ.ləs/
C1 unable to speak because you are so angry, shocked, surprised, etc.: The news left us speechless. She was speechless with indignation.Falling silent and not speaking speechlessly     /-li/ adverb Falling silent and not speaking speechlessness     /-nəs/ noun [U] Falling silent and not speaking
(Definition of speechless adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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