quite stiff (all meanings)

plural of stiffy / plural of stiffie

Alternative form of stiff-necked

Alternative form of stiff-neckedness

plural of stifftail

Any of various ducks whose tails have stiff feathers, including the ruddy duck.

plural of stiffening

(nautical, historical) A permission granted by the customs department to take cargo or ballast on board before the old cargo is out, in order to steady the ship.

plural of stiffening order

Third-person singular simple present indicative form of stiffen up