solid as a rock

Definition from Wiktionary, the free dictionary
Jump to: navigation, search



solid as a rock (not comparable)

  1. (simile) Extremely thick and heavy, so as to make it impossible to move.
    We're not going to be able to break down this door: it's solid as a rock.
  2. (simile, of a person) Very reliable and dependable
    Stewart has been solid as a rock ever since becoming the new vice-chairman.