We found 2 dictionaries that define the word couldn't be happier:

General (1 matching dictionary)

1. couldn't be happier: Merriam-Webster

Miscellaneous (1 matching dictionary)

2. couldn't be happier: Idioms

▸ Words similar to couldn't be happier ▸ Usage examples for couldn't be happier ▸ Idioms related to couldn't be happier ▸ Wikipedia articles (New!) ▸ Words that often appear near couldn't be happier ▸ Rhymes of couldn't be happier ▸ Invented words related to couldn't be happier