I asked ChatGPT. Response: A person who unnecessarily complains and is grumpy might be described as a "grouch," "crank," "curmudgeon," or "grump." These words s

I asked ChatGPT. Response: A person who unnecessarily complains and is grumpy might be described as a "grouch," "crank," "curmudgeon," or "grump." These words suggest someone who is habitually irritable and unhappy, and tends to complain or find fault with things unnecessarily.