Enter a clue or pattern or both:
The Clue
Without a match (8 letter answer)
The Answer
UNIQUELY
Tags
Notes
The answer UNIQUELY is so rare that it appears less than once every 2500 puzzles.
Definition
UNIQUELY as an adverb:
1. (uniquely, unambiguously) = so as to be unique; "he could determine uniquely the properties of the compound"