rad

comparative radder · superlative raddest

1. abbreviationclippingdatedslangClipping of radical (“excellent”).

   What is up, girly-friend? Holy shit, cuz. This is such a rad surprise.

   2011, Diablo Cody, Young Adult (motion picture), spoken by Wheelchair Mike (John Forest)

   1 more example

   In the Guinness Book of World-fucking-Records, man… under "Raddest Fucking Dude Alive"!

   2002, Brent Goldberg, David Wagner, Van Wilder (motion picture), spoken by Wasted Guy (Aaron Paul)

   Synonyms: amazing, astounding, awe-inspiring, awesome, awful, sensational, awesomesauce, based

plural rads

1. metrologyA non-SI unit of absorbed dose of radiation, equal to 0.01 gray, that is, 1 centigray.

   Near-synonyms: centigray, cGy (same physical quantity)

   Synonyms: centigray, mul:cGy

2. symbolSymbol for the radian, a unit of measure for angle.
3. abbreviationclippingslangautomotiveClipping of radiator.
4. abbreviationslangengineeringAbbreviation of sight radius.
5. abbreviationclippingClipping of radical: a political radical.

   The women who work in it with me are all feminists, they're all rads, two of them are black belts in karate...I mean, they're major women.

   1991 April 19, Penny Arcade, “The Real Thing”, in Gay Community News, page 8

plural RADs

1. abbreviationcountableinitialismbusinessInitialism of role activity diagram.
2. abbreviationinitialismuncountablecomputingInitialism of rapid application development.
3. abbreviationcountableinitialismuncountablemedicineInitialism of reactive attachment disorder.

1. abbreviationinitialismUS space program; space; US space program; spaceInitialism of Radiation Assessment Detector, a scientific instrument of the Mars Science Laboratory onboard the Curiosity rover at Mars.
2. abbreviationacronymAcronym of River Arts District, a neighborhood of Asheville, North Carolina, United States.

   The recovery is still a work in progress, given the deadly storm’s massive impact on people across Western North Carolina and its devastation of two popular Asheville neighborhoods — the RAD (“rad”), as locals call it, and nearby Biltmore Village.

   2025 June 26, Marnie Hunter, “‘These mountains are still here.’ Asheville is ready for your visit”, in CNN, archived from the original on 03 Jul 2025