The most common and most likely answer to this crossword clue is the 4 letter word ONER which also is the latest solution we found used in New York Times in 1945.
Effort requiring no repeating: Slang crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters | 
|---|---|---|
| ONER | 100 % | 4 | 
Words with a meaning similar to the clue: Effort requiring no repeating: Slang
These words may or may not be a possible solution to this crosswords clue.- effortless
 - easy
 - mindless
 - soft
 - crash
 - say
 - cant
 - dog
 - play
 - hard
 - project
 - work
 
Crossword Answer definitions
ONER noun- An extraordinary individual.
 - A small marble of little worth in children's games.
 - A conker that has won one match.
 
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution