based
- 1Derived or developed from something that serves as its source or foundation, usually followed by 'on' or 'upon'.
Like a recipe that grows out of an older family one: you can still taste the original underneath.
The screenplay was based on a forgotten diary from the war.
His ruling was based upon a narrow reading of the statute.
UsageUse on or upon for the source, in for a place: based on a novel, based in Geneva.
- 2Founded on or having a particular basis, and frequently used as the final element in combining forms.
The reform is broadly based, drawing support from every region.
Hospitals increasingly favor evidence-based treatment over tradition.
UsageMostly after an adverb or in compounds: broadly based, evidence-based, water-based.
Note
It is simply base plus -ed, distinct from the slang of self-assurance, which has its own history through basehead.
Checked 1 Nov 2026 · 1 fact
- The traditional adjective is formed from base plus -ed. en.wiktionary.org
- 3Operating from a particular location that serves as one's center of activity.
The charity is based in Geneva but runs projects worldwide.
He spent the decade based in Tokyo as a foreign correspondent.
UsageUse in for a city or country, at for a building: based in Berlin, based at the airport.
Similarheadquartered, stationed, located, situated
Less common meanings
- 4Admired for saying or doing what one thinks regardless of others' opinions, especially when the view is unpopular, controversial, or politically incorrect.
Calling out the bad decision in front of the whole board was a based move.
Half the comments called her based for defending the unpopular ending, while the rest just kept arguing with her.
UsageFor stronger praise, use based as hell. Cringe expresses the opposite judgment.
Oppositecringe
Note
This sense moves the word from a way of living to a verdict on opinions and actions. It grew from the individualist sense, and calling something based praises it for going against the grain, often with a wink.
Checked 1 Nov 2026 · 1 fact
- The approving sense developed from the earlier individualist, lifestyle sense. en.wikipedia.org
- 5Used to express strong approval of a statement or opinion, often a controversial or unpopular one.
When Jake admitted in the group chat that he actually likes pineapple on pizza, Maria replied with one word: "Based."
She declared pineapple belonged on pizza, and the comments were a wall of "Based."
UsageA whole reply on its own: someone posts a bold view, and the answer is Based.
Similarword
Oppositecringe
Note
It works like right on or damn straight, but it usually endorses a view the speaker expects others to find unpopular, so it carries contrarian relish rather than plain agreement.
- 6Provided with or resting on a base of a particular kind.
Archaeologists found several flat-based clay pots that could stand upright on the ground without any support.
On a rocking boat, a wide-based mug is much harder to knock over than a tall, narrow glass.
UsageMostly in compounds: a heavy-based pan, a flat-based pot.
Similarseated
- 7Unconcerned with others' opinions of one's personality, style, or behavior; committed to one's own individuality.
Even after his friends teased him about the neon sneakers, Marcus kept wearing them to school, because he's just based like that.
He's so based that he wore his grandfather's old suit to the party without a second thought.
Similarmaverick
Note
An insult turned into a personal philosophy: based once meant cracked out, from basehead, and the California rapper Lil B reclaimed it to describe his own lifestyle. In 2010 he explained it as being yourself, unafraid of what people think, and above all positive. It describes people. Maverick comes close, but this slang sense keeps Lil B's stress on empathy and positivity rather than simple defiance.
Checked 31 Oct 2026 · 7 facts
- Based was formerly an insult meaning cracked out. en.wikipedia.org
- The slang word derives from basehead. en.wiktionary.org
- Lil B is a California rapper who reclaimed based to describe his lifestyle. en.wikipedia.org
- Lil B is a rapper from California. en.wiktionary.org
- Lil B explained the term in 2010. complex.com
- His explanation emphasized being yourself, freedom from fear of others' opinions, and positivity. en.wiktionary.org
- Lil B's philosophy emphasizes empathy and positivity. thefader.com
Showing meanings only.
Practice
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Origins
Formed from "base" combined with the suffix "-ed".
Checked 31 Oct 2026 · 1 fact
- The ordinary adjective based is formed from base and the suffix -ed. en.wiktionary.org
From earlier slang based, an insult for someone high on freebase cocaine, from basehead. The California rapper Lil B reclaimed it in the late 2000s as praise for being yourself and staying positive.
Checked 31 Oct 2026 · 5 facts
- The slang origin connects based with freebase cocaine through basehead. en.wiktionary.org
- Based previously described people affected by cocaine and was used insultingly. obserwatorium-mlodziezy.ujk.edu.pl
- Lil B is a rapper from California. en.wiktionary.org
- Lil B reclaimed the insult during the late 2000s. en.wikipedia.org
- Lil B's positive interpretation emphasized individuality and positivity. complex.com