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/ˈspiːt͡ʃ.lɪs/ · adjective
Not speaking; not knowing what to say; silent, especially due to surprise, amazement, etc.; wordless..
When he walked into his surprise birthday party, he was completely speechless.
The attack was so unwarranted and delivered with such venom that his unpreparedness for it left him speechless.
Immortal Pleaſures round my ſwimming Eyes did dance, And ſpeechleſs Joys, in whoſe ſweet Tumult toſt, I thought my Breath, and my new Being loſt.
O Mother Earth, O Sun that makest clean, What poison have I heard, what speechless sin !
Use speechless when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Speechless means Not speaking; not knowing what to say; silent, especially due to surprise, amazement, etc.; wordless..
Common synonyms include unspeakable, inarticulate, dumb, unarticulate.
The opposite depends on the specific sense.
When he walked into his surprise birthday party, he was completely speechless.
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