The definition of speechless is nothing to say, or when you are made silent, usually as a result of a surprise or other strong emotion.
(adjective)When your boyfriend proposes to you and it comes as such a complete surprise that you are overcome with emotions and can't even speak, this is an example of when you are speechless.
See speechless in Webster's New World College Dictionary
adjective
Related Forms:
See speechless in American Heritage Dictionary 4
adjective
Related Forms:
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