strike dumb

Verb

Meaning

render speechless, as by surprising or shocking

Source: WordNet

flabbergast dumbfound daze jolt shush floor shock surprise render throw humble confuse shake dismay disturb

Show all synonyms

support help aid agree encourage settle

Show all antonyms

move affect strike impress

He who seldom speaks, and with one calm well-timed word can strike dumb the loquacious, is a genius or a hero. Johann Kaspar Lavater

we were struck dumb by the candidate's announcement Source: Internet