Infuriating
Part of speech: adjective
Definition: Extremely annoying; frustrating
Part of speech: verb
Definition: To make furious or mad with anger; to fill with fury.
Example sentence: While cats can be infuriating, little old women in fur coats, they make me laugh. Of course, dogs, horses and my highly social chickens are dear to me, too.
Maddening
Part of speech: verb
Definition: To make angry.
Part of speech: adjective
Definition: Causing frustration or anger.Leading to insanity.