Synonyms of tongue tied

Verb

1. tongue-tie, deprive

usage: deprive of speech; "When he met his idol, the young man was tongue-tied"

Adjective

1. incoherent, tongue-tied, inarticulate (vs. articulate), unarticulate

usage: unable to express yourself clearly or fluently; "felt tongue-tied with embarrassment"; "incoherent with grief"