1.Definition: having a strong physiological or chemical effect
"A stiff drink"
2.Definition: incapable of or resistant to bending
"A palace guardsman stiff as a poker", "Stiff hair", "A stiff neck"
3.Definition: marked by firm determination or resolution; not shakable
4.Definition: not moving or operating freely
"A stiff hinge"
"A stiff current", "A stiff breeze"
7.Definition: very drunk