unknown

Definition

  • n. an unknown and unexplored region
  • n. a variable whose values are solutions of an equation
  • adj. not known
  • adj. not known to exist

Word forms

Plural
unknowns

Example sentences

  1. a.

    The unknown forest scared the hikers, but they decided to explore it anyway.

  2. n.

    In mathematics, x is often used to represent an unknown in an equation.