Below are possible answers for the crossword clue Stiffness.
5 letter answer(s) to stiffness
RIGOR
excessive sternness; "severity of character"; "the harshness of his punishment was inhuman"; "the rigors of boot camp"
something hard to endure; "the asperity of northern winters"
the quality of being valid and rigorous
6 letter answer(s) to stiffness
STARCH
a commercial preparation of starch that is used to stiffen textile fabrics in laundering
a complex carbohydrate found chiefly in seeds, fruits, tubers, roots and stem pith of plants, notably in corn, potatoes, wheat, and rice; an important foodstuff and used otherwise especially in adhesives and as fillers and stiffeners for paper and textiles
stiffen with starch; "starch clothes"
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