Wordiyo
RootsVocabularyCoursesGuidesMy WordsPricing
Wordiyo

Build your English vocabulary systematically through roots and etymology.

Explore

  • Roots
  • Vocabulary
  • My Words

Learn

  • Guides
  • Pricing

Company

  • About
  • Terms
  • Privacy

© 2026 Wordiyo.

  1. Home
  2. /hilar
  3. /hilarious

hilarious

UK/həˈleəriəs/US/hi'lєәriәs/
IELTSTOEFLGREB2

Definitions

adj.

Extremely funny; causing loud, helpless laughter

令人捧腹的,非常滑稽的

Root Breakdown

Root-derived
hilarcheerful, merry, joyful
+
-iousfull of, having the quality of
=hilarious

hilar (cheerful, from Greek hilaros) + -ious (full of) = "full of cheer." English intensified it: not just cheerful but so funny you can't stop laughing — the strongest everyday word for "funny."

Root hilar still carries 5 more words

Usage Guide

- Spelling/pronunciation trap: one l, stress on the second syllable — hi-LAR-ious /hɪˈleəriəs/. Don't double the l.

- It's already an extreme word, so avoid "very hilarious"; use "absolutely hilarious" or "truly hilarious" for emphasis.

- Don't confuse with exhilarating: hilarious = makes you laugh; exhilarating = makes you thrilled and energized.

Example Sentences

  • 1.

    His impression of the boss was absolutely hilarious.

  • 2.

    We watched a hilarious comedy that had everyone in tears.

  • 3.

    It wasn't supposed to be funny, but the typo was hilarious.

Easily Confused

hilarious vs funny vs amusing — funny is the neutral default; amusing is mild, often a quiet smile; hilarious is the top of the scale, helpless laughter. A meeting can be amusing, a joke funny, but only something truly side-splitting is hilarious.

Derivatives

hilarityhilariously
← Back to hilar