Stiff

adolorido

(of muscles, or parts of the body)

brutal

(colloquial: harsh, severe)

dolorido

(of muscles, or parts of the body)

duro

(of an object, rigid, hard to bend, inflexible)

feroz

(colloquial: harsh, severe)

inflexible

(of an object, rigid, hard to bend, inflexible)

inflexible

(figuratively: of policies and rules and their application and enforcement)

rígido

(of an object, rigid, hard to bend, inflexible)

rígido

(figuratively: of policies and rules and their application and enforcement)

rígido

(of a person, formal in behavior, unrelaxed)

rígido

(colloquial: harsh, severe)

serio

(of a person, formal in behavior, unrelaxed)

severo

(colloquial: harsh, severe)

tieso

(of an object, rigid, hard to bend, inflexible)

tieso

(of a person, formal in behavior, unrelaxed)

yerto

(of muscles, or parts of the body)

fiambre

(slang: cadaver, dead person)

tieso

(slang: cadaver, dead person)