noun

curmudgeon

ker-MUJ-un/kɜːrˈmʌdʒən/

A grumpy, bad-tempered person, usually older.

Our neighbor is a curmudgeon who complains about everything.

A sour-faced middle-aged woman occupies a park bench and stubbornly guards the empty seat with her bag, refusing an older woman's polite gesture asking to sit.
Etymology

The word’s origin is unknown. Its earlier use for a churlish, miserly fellow connects with today’s bad-tempered person through an enduring sense of disagreeableness.

In context

Ascend - The Great Books Podcast0:08
I am a complete curmudgeon about this movie. I'm totally negative about it.
A Cantankerous Review of the Odyssey Movie

More examples

  • Even that old curmudgeon smiles when his granddaughter visits.
  • I'm a bit of a curmudgeon before my morning coffee.
  • The two curmudgeons grumble about the music throughout dinner.

Forms

curmudgeon · curmudgeons

curmudgeonly adjective — Grumpy and inclined to complain.

Similar words

grouch
A more casual term, without suggesting an older person.
crank
Can suggest odd opinions as well as an irritable temperament.