Filed from 4 published puzzles

NOMATTER

Set to 4 different clues across 4 published puzzles, most often "That's of little importance" — The New York Times, Thursday, 4 November 2010.

8 letters

Every clue on record, most used first

"That's of little importance"once
The New York Times — Thursday, 4 November 2010
"Whatever"once
The New York Times — Saturday, 5 September 2009
"Don't sweat it"once
The New York Times — Sunday, 2 September 2007
"Forget it"once
The New York Times — Sunday, 15 October 2006

Other answers to these clues

AINTGONNAHAPPEN15 letters
ANY3 letters
ANYKIND7 letters
ASIFICARE9 letters
ATALL5 letters
IDONTCARE9 letters
ISAYNO6 letters
IWONT5 letters
IXNAY5 letters
LIKEICARE9 letters
NAH3 letters
NIX3 letters