The most common and most likely answer to this crossword clue is the 5 letter word SINEW which also is the latest solution we found used in Chronicle of Higher Education in 2014.
Source of toughness crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters |
|---|---|---|
| SINEW | 100 % | 5 |
Words with a meaning similar to the clue: Source of toughness
These words may or may not be a possible solution to this crosswords clue.- sinew
- hard
- strength
- fiber
- hardihood
- rigor
- steel
- funiliform
- ball
- catgut
- ease
- grit
Crossword Answer definitions
SINEW noun- A cord or tendon of the body.
- A cord or string, particularly as of a musical instrument.
- Muscular power, muscle; nerve, nervous energy; vigor, vigorous strength.
- (often in the plural) That which gives strength or in which strength consists; a supporting factor or member; mainstay.
- A nerve.
- To knit together or make strong with, or as if with, sinews.
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution