1. Lacking the human power of speech
2. of a person , often offensive; lacking the ability to speak
3. Temporarily unable to speak (as from shock or astonishment)
4. Not expressed in uttered words
5. Silent; also; Taciturn
6. Lacking some usual attribute or accompaniment; especially; having no means of self-propulsion
7. Lacking intelligence; stupid
8. Showing a lack of intelligence
9. Requiring no intelligence
10. Not having the capability to process data — compare intelligent + prikaži više

ETYM Latin mutus; cf. Greek myein to shut, Skr. muta bound, muka dumb: cf. Old Eng. muet, from French muet, a dim. of Old Fren. mu, Latin mutus.
1. Expressed without speech; especially because words would be inappropriate or inadequate; SYN. tongueless, unspoken, wordless.
2. Lacking power of speech; SYN. tongueless.