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.

Blah vs Undefined - What's the difference?

blah | undefined |

As adjectives the difference between blah and undefined

is that blah is (informal) dull; uninteresting; insipid while undefined is lacking a definition or value.

As a noun blah

is (uncountable|informal) nonsense; drivel; idle, meaningless talk.

As an interjection blah

is an expression of mild frustration.

As a verb blah

is to utter idle, meaningless talk.

blah

English

(wikipedia blah)

Noun

  • (uncountable, informal) Nonsense; drivel; idle, meaningless talk.
  • (informal) (in plural, the blahs ]] ) A general or ambiguous feeling of discomfort, dissatisfaction, uneasiness, boredom, mild depression, [[etc.

    • Synonyms

    * bosh, bombast, bunkum, claptrap, eyewash, fustian, rant, hooey, humbug, rubbish, twaddle * malaise

    Adjective

    (en adjective)
  • (informal) Dull; uninteresting; insipid.
    • Well, the new restaurant seems nice, but their menu is a little blah .
  • (informal) Low in spirit or health; down.
    • I decided to go exercise rather than sit around all day feeling blah .

    Interjection

    (en interjection)
  • An expression of mild frustration.
    • Blah ! Why can't I get this computer to work!
  • (When spoken repeatedly, often three times in succession: blah blah blah! ) Imitative of idle, meaningless talk; used sometimes in a slightly derogatory manner to mock or downplay another's words, or to show disinterest in a diatribe, rant, instructions, unsolicited advice, parenting, etc. Also used when recalling and retelling another's words, as a substitute for the portions of the speech deemed irrelevant.
    • Yea, yea, blah blah blah , Mom, you said this all yesterday.
    And then he was like, "Oh, my brother's an Internet millionaire, blah blah blah ." Like I care!
  • Representing the sound of vomiting. See bleah', ' bleh .

    • Synonyms

    * (boring content) blah blah blah, yada yada yada

    Verb

    (en verb)
  • To utter idle, meaningless talk.
  • * 2014 , Shelagh Stephenson, Ancient Lights (page 28)
    • Ooh, I feel so guilty, I've got far too much money —

    See also

    * bleah * bleh

    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