Dictionary.com
Thesaurus.com
Synonyms

dead set

American  
[ded set, ded set] / ˈdɛd ˈsɛt, ˈdɛd ˌsɛt /

adjective

  1. firmly decided or determined; resolved.

    His family was dead set against the marriage.


noun

  1. a serious or determined attempt; firm effort.

    He made a dead set at winning the championship.

  2. Hunting. the stiff posture assumed by a hunting dog in indicating the presence and location of game.

dead set British  

adverb

  1. absolutely

    he is dead set against going to Spain

"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

noun

  1. the motionless position of a dog when pointing with its muzzle towards game

"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. (of a hunting dog) in this position

"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

interjection

  1. slang an expression of affirmation

    dead set, I worked from dawn to dusk

"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 dead set

An Americanism dating back to 1840–50

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.

See Examples For:

Williams agrees this has been her experience, one she’s grateful for in an industry often dead set on ignoring perspectives like hers.

From Los Angeles Times Aug. 10, 2026

Knueppel says he learned it by a being kid trying to escape an entire court of grown men who were dead set on stopping him.

From The Wall Street Journal Apr. 8, 2026

With Poland dead set against it, that means either France or Italy, both home to rowdy agricultural lobbies, would have to sign on.

From Barron's Dec. 30, 2025

"The very fact they were dead set on employing these independent advocates themselves says something about the culture - its control, and just not even beginning to understand the nature of independence."

From BBC Mar. 14, 2025

His eyes were dead set on the horizon.

From "Adrift" by Paul Griffin

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training