extremely annoyed, especially if you cannot do anything to improve the situation synonym infuriate “Why won't you answer me?” he asked in an exasperated voice.

Is exasperation a noun verb or adjective?

verb (used with object), ex·as·per·at·ed, ex·as·per·at·ing. to irritate or provoke to a high degree; annoy extremely: He was exasperated by the senseless delays. Archaic. to increase the intensity or violence of (disease, pain, feelings, etc.).

Is exasperating an adjective or adverb?

exasperating adjective - Definition, pictures, pronunciation and usage notes | Oxford Advanced Learner's Dictionary at OxfordLearnersDictionaries.com.