adjective / ker-muhj-uhn-lee / curmudgeon / curmudgeons / curmudgeonry / curmudgeonliest / curmudgeonlier
(Emotions) in a manner fitting a habitually grouchy person
Sociologists also say that higher education and training in the scientific method generally make people less gullible. And for better or for worse, so does being in a bad mood. In several experiments, researchers found that when someone is in a good mood, they become more innocent and unsuspecting, while feeling grumpy makes one better at sensing deception. Which has to be the most curmudgeonly superpower I’ve ever heard.
Amanda Montell (Cultish: The Language of Fanaticism)