Word.ws English Dictionary

hard as a rock

hard as a rock adjective: very hard (tough, inflexible); rock hard.

Adjective

hard as a rock (not comparable)

  1. (simile) Very hard (tough, inflexible); rock hard.

Questions about hard as a rock

What does hard as a rock mean?
Hard as a rock means very hard (tough, inflexible); rock hard.
What part of speech is hard as a rock?
Hard as a rock is an adjective.

Words near hard as a rock in the dictionary

  1. Harcums
  2. hard
  3. hard act to follow
  4. hard acts to follow
  5. hard and fast
  6. hard as a rock
  7. hard as brazil
  8. hard as Chinese algebra
  9. hard as Chinese arithmetic
  10. hard as iron
  11. hard as nails

Source and license

Adapted from Wiktionary: hard as a rock (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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