senseless

adjective

sense·​less ˈsen(t)s-ləs 

: destitute of, deficient in, or contrary to sense: such as

a

: unconscious

knocked senseless

b

: foolish, stupid

… it was some senseless practical joke …

—Arthur Conan Doyle

c

: meaningless

a senseless murder

senselessly adverb

senselessness noun

Synonyms of senseless

• unconscious

Examples of senseless in a Sentence

Don't be such a senseless idiot!

she collapsed, senseless, after hitting her head

Recent Examples on the Web

Every dollar wasted on a senseless program or stolen by a fraudster is one that can’t go to a worthy cause (or back to taxpayers). —Carrie Lukas, Forbes.com, 21 Jan. 2026

Sony Pictures Watching the Jimmies' penchant for senseless violence and prolonged cruelty play out on screen is brutal enough as is. —Megan McCluskey, Time, 16 Jan. 2026

The recent senseless death of an innocent woman by ICE goons could be the last straw. —Voice Of The People, New York Daily News, 16 Jan. 2026

And now this- a senseless killing of an American by ICE. —Julianna Duennes Russ, Austin American Statesman, 8 Jan. 2026

Word History

First Known Use

circa 1547, in the meaning defined above

Rhymes for senseless

• defenseless

Kids Definition

senseless

adjective

sense·​less ˈsen(t)-sləs 

1

: unconscious entry 1 sense 2

knocked senseless

2

: foolish, stupid

3

: pointless sense 1, meaningless

a senseless act

senselessly adverb

senselessness noun