A state of alarm or dread; apprehension. See Synonyms at fear.
An involuntary trembling or quivering.
[Latin trepidātiō, trepidātiōn-, from trepidātus, past participle of trepidāre, to be in a state of confusion, from trepidus, anxious.] trep'i·da'tious (-shəs) adj.