The most common and most likely answer to this crossword clue is the 7 letter word STERILE which also is the latest solution we found used in New York Times in 1981.
Useless; ineffective crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters | 
|---|---|---|
| STERILE | 100 % | 7 | 
Words with a meaning similar to the clue: Useless; ineffective
These words may or may not be a possible solution to this crosswords clue.- inoperative
 - sterile
 - futile
 - idle
 - inefficacious
 - nullify
 - paralyze
 - paralyzed
 - paralyzing
 - stultify
 - destroy
 - puncture
 
Crossword Answer definitions
STERILE adjective- Unable to reproduce (or procreate).
 - Terse; lacking sentiment or emotional stimulation, as in a manner of speaking.
 - Fruitless, uninspiring, or unproductive.
 - Germless; free from all living or viable microorganisms.
 - Free from dangerous objects, as a zone in an airport that can be only be entered via a security checkpoint.
 - Of weapons: foreign-made and untraceable to the United States.
 
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution