Dictionary.com
Thesaurus.com
Synonyms

badass

American  
[bad-as] / ˈbædˌæs /

adjective

  1. (of a person) difficult to deal with; mean-tempered and sometimes violent.

  2. so tough, assertive, or independent as to be somewhat intimidating.

    He is one badass sheriff who stops at nothing to solve a mystery.

  3. awesome or impressive; worthy of admiration: a bluegrass band with a badass fiddler.

    badass American sports cars;

    a bluegrass band with a badass fiddler.


noun

  1. a mean-tempered troublemaker.

  2. a somewhat intimidating person who is tough, assertive, or independent.

    She’s a corporate badass who knows her worth.

badass British  
/ ˈbædˌæs /

noun

  1. a tough or aggressive person

    the meanest badass in town

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adjective

  1. tough or aggressive

    a badass rock band

  2. excellent

    a real badass watch

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of badass

First recorded in 1950–55; bad 1 + ass 2

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

She, too, soon returned Bob to Badass, citing the difficulty of his care.

From Slate • Sep. 4, 2025

The 400-plus page “Matriarch” charts her poor upbringing in Galveston, Texas, under the self-ascribed nickname Badass Tenie B; dabbling in singing, sewing and beauty; and her tumultuous marriage to Mathew Knowles.

From Los Angeles Times • Apr. 22, 2025

Her semi-autobiographical book Badass, released in 2010, encouraged young women to live life with attitude and confidence.

From BBC • Jul. 14, 2024

Fans even stuck by him through the American Badass era, a strange time when the Lord of Darkness rode a chopper and patriotically waved a US flag.

From The Guardian • Nov. 23, 2020

As I walk through the halls, there’s no telling what Badass British Finch might do.

From "All The Bright Places" by Jennifer Niven