What's the difference between
and
Enter two words to compare and contrast their definitions, origins, and synonyms to better understand how those words are related.

Frown vs Undefined - What's the difference?

frown | undefined |

As a noun frown

is a facial expression in which the eyebrows are brought together, and the forehead is wrinkled, usually indicating displeasure, sadness or worry, or less often confusion or concentration.

As a verb frown

is to have a on one's face.

As an adjective undefined is

lacking a definition or value.

frown

English

Noun

(en noun)
  • A facial expression in which the eyebrows are brought together, and the forehead is wrinkled, usually indicating displeasure, sadness or worry, or less often confusion or concentration.

    • Derived terms

    * permafrown

    Verb

    (en verb)
  • To have a on one's face.
  • To manifest displeasure or disapprobation; to look with disfavour or threateningly.
    • Noisy gossip in the library is frowned upon.
  • * Shakespeare
    • The sky doth frown and lower upon our army.
  • To repress or repel by expressing displeasure or disapproval; to rebuke with a look.
    • Frown the impudent fellow into silence.

    Derived terms

    * frown at * frown on * frown upon

    undefined

    English

    Adjective

    (wikipedia undefined) (-)
  • Lacking a definition or value.
  • (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
    • The result of division by zero is undefined .

    Antonyms

    * defined