(as) steady as a rock

(as) steady as a rock

1. Firmly fixed in position; unmovable. There's no way this table would break underneath me—it's made from solid oak, so it's as steady as a rock! The bouncer of the club stood in the door, steady as a rock, turning away anyone without proper ID.
2. Completely and thoroughly resolute, dependable, and trustworthy. I have to say, Sarah has been as steady as a rock during this whole ordeal. Whoever is chosen to lead the company will need to be steady as a rock.
See also: rock, steady
Farlex Dictionary of Idioms.

*steady as a rock

Cliché very steady and unmovable; very stable. (*Also: as ~.) His hand was steady as a rock as he made each incision. You must remain as steady as a rock when you are arguing with your supervisor.
See also: rock, steady
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

steady as a rock

Firm, dependable, as in Betty always knows her part; she's steady as a rock. This simile uses rock in the sense of "something that affords a sure support," a usage dating from the early 1500s.
See also: rock, steady
The American Heritage® Dictionary of Idioms by Christine Ammer.

(as) steady as a ˈrock

extremely steady and calm; that you can rely on: Even though she must have been frightened, her voice was as steady as a rock and she looked him straight in the eyes when she spoke.
See also: rock, steady
Farlex Partner Idioms Dictionary

steady as a rock

Unwavering. This simile, which clearly alludes to a very large immobile rock, dates from the mid-1800s. It is used to describe either physical steadfastness or mental, behavioral stability. The former is meant by J. B. Harwood in Lady Flavia (1865): “The hand that held the candle was steady as a rock.” The latter appears in “You can count on John to run the office; he’s steady as a rock.”
See also: rock, steady
The Dictionary of Clichés by Christine Ammer
See also:
  • steady
  • steady as a rock
  • it's all the same to me
  • be up to (one)
  • be up to somebody
  • it's on me
  • the way the crow flies
  • it strikes me that
  • it's a wonder
  • it's a wonder...