Enter a clue or pattern or both:
The Clue
Unforeseen effect (12 letter answer)
The Answer
REPERCUSSION
Tags
Notes
The answer REPERCUSSION is so rare that it appears less than once every 2500 puzzles.
Definition
REPERCUSSION as a noun:
1. (repercussion, reverberation) = a remote or indirect consequence of some action; "his declaration had unforeseen repercussions"; "reverberations of the market crash were felt years later"
2. (recoil, repercussion, rebound, backlash) = a movement back from an impact