couldn't be better

couldn't be better

(One's wellbeing or the state of something) is perfect, exactly as desired, or better than expected. A: "How are you?" B: "Oh, couldn't be better! My job is great, and I just bought a house!" Oh, the project couldn't be better—we're actually ahead of schedule.
See also: better
Farlex Dictionary of Idioms.

(I) couldn't be better.

Inf. I am fine. John: How are you? Jane: Couldn't be better. Bill: I hope you're completely well now. Mary: I couldn't be better.
See also: better

(It) couldn't be better.

 and (Things) couldn't be better.
Everything is fine. John: How are things going? Jane: Couldn't be better. Bill: I hope everything is okay with your new job. Mary: Things couldn't be better.
See also: better
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • better half, my
  • make a better fist of (something)
  • all the better
  • all to the better
  • so much the better
  • ideally
  • be better placed
  • be well, ideally, better, etc. placed for something/to do something
  • better get moving
  • (one had) better get moving
References in periodicals archive
`Well your heart is in good shape, couldn't be better than it is.
In good heart