Stiffen meaning

What does “stiffen” mean? Definitions, examples, synonyms and opposites.

“stiffen” is a verb with 3 meanings. Its most common meaning is: become stiff or stiffer.

stiffen

verb

  1. become stiff or stiffer

    “He stiffened when he saw his boss enter the room”

    Oppositesloosen
  2. make stiff or stiffer

    “Stiffen the cream by adding gelatine”

    Oppositesloosen
  3. severely restrict in scope or extent

    “tighten the rules”

    “stiffen the regulations”

Source: WordNet 3.1, Princeton University