speechless

Definition of Speechless in English :

1. dumb, speechless

temporarily incapable of speaking

Example Sentences:
'struck dumb'
'speechless with shock'

WordNet Lexical Database for English. Princeton University. 2010.

Speechless

adjective

1.

not able to speak

2.

temporarily deprived of speech

3.

not expressed or able to be expressed in words

speechless fear

adjective

1.

incapable of speech; lacking the ability to speak

2.

temporarily unable to speak; silent, as from shock

3.

not expressed or expressible in words

speechless terror

adj.

1. Lacking the faculty of speech.

2. Temporarily unable to speak, as through astonishment.

3. Refraining from speech; silent.

4. Unexpressed or inexpressible in words: speechless admiration.