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based definition


This page has 8 definitions of based in English. Based is an adjective and verb. Examples of how to use based in a sentence are shown. Also define these 0 related words and terms: .



Etymology 1

base +‎ -ed


based (comparative more based, superlative most based)

  1. Founded on; having a basis; often used in combining forms.
    That was a soundly based argument.
founded on; having a basis

Derived terms




  1. simple past tense and past participle of base
    1. Being derived from (usually followed by on or upon).
      It's a new film based on a best-selling novel.
    2. Having a base
      The ladder is based on the even sidewalk for stability.
    3. Having a base of operations.
      The company is based in New York.

Etymology 2

A reference to freebase cocaine, via basehead. Coined by American musician Lil B to describe his lifestyle.


based (comparative more based, superlative most based)

  1. (slang, of a person) Not caring what others think about one's personality, style, or behavior; focused on maintaining individuality.
    • 2010 June 10, Lil B,[1]:
      Based means being yourself. Not being scared of what people think about you. Not being afraid to do what you wanna do. Being positive. [] Based is positive.
    • 2012, Duncan Cooper, "Based Scripture: The Full Transcript of Lil B’s Lecture at NYU", The Fader, 12 April 2012:
      You have to work as a human with empathy and love in your heart, staying positive and staying based and staying normal.
  2. (Internet slang, alt-right, originally 4chan) Admirable for rejecting liberalism or left-wing values.
    Synonym: unwoke
    based and redpilled
    • 2019, Kira Stalker, "The Fracturing of the Alt Right: Conflicting Online Discourses Of White Nationalist Communities", thesis submitted to George Mason University, page 139:
      Those who are against Trump are not based at all. On February 16th, The Donald users comment on a “based” post in r/DankMemes which uses a classic Squidward sleeping meme to criticize those who are upset by Chris Pratt going to “church” (one which was purportedly anti-LGBT) but “ok” with sex predators in Hollywood: []
    • 2019, anonymous, quoted in Cathrine Thorleifsson, "From cyberfascism to terrorism: On 4chan/pol/ culture and the transnational production of memetic violence", Nations and Nationalism, Volume 28, Issue 1, page 293:
      His [Brenton Tarrant's] meme-themed shooting greatly represents the spirit of the aussie people, in the sense of shitposting until their last moment, based and redpilled he is.
    • 2020, David Rubin, Don't Burn This Book: Thinking for Yourself in an Age of Unreason, unnumbered page:
      Then, in the same month, noted feminist Christina Hoff Sommers was branded “white supremacy-adjacent” by feminist Roxane Gay. Her reasoning? That our belovedBased Mom” once appeared at an event with Milo Yiannopoulos and didn't disavow him enough.
  3. (Internet slang) Admirable; praiseworthy.
    Antonyms: cringe, unbased
    OP is based as fuck