Brisances is a 9 letter English word. It's valid Scrabble word worth 12 points. It's valid Words with friends word worth 15 points.
You can make 604 anagrams from letters in brisances (abceinrss).
1910-15; French, equivalent to bris(er) to break (Celtic; akin to Irish brisim (I) break) + -ance -ance
It isn't exactly strength or hardness or toughness or resilience or brisance—maybe a combination of all five.