Enter a clue or pattern or both:
The Clue
Hard-working (9 letter answer)
The Answer
ASSIDUOUS
Tags
Notes
The answer ASSIDUOUS is so rare that it appears less than once every 2500 puzzles.
Definition
ASSIDUOUS as an adjective:
1. (assiduous, sedulous) = marked by care and persistent effort; "her assiduous attempts to learn French"; "assiduous research"; "sedulous pursuit of legal and moral principles"