Irritating
Part of speech: verb
Definition: To provoke impatience, anger, or displeasure in.
Part of speech: adjective
Definition: Causing irritation, annoyance or pain. Stimulating or exciting a response.
Example sentence: The idea of God as a fatherly figure who looks down on us and worries about how we're doing or takes sides when we have fights - it's more irritating than Santa Claus. The world and the universe are far more wonderful if there's not a puppet master.
Stimulative
Part of speech: adjective
Definition: Describing something that stimulates.