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Synonyms

senseless

American  
[sens-lis] / ˈsɛns lɪs /

adjective

  1. destitute or deprived of sensation; unconscious.

    Synonyms:
    insensible, insensate
  2. lacking mental perception, appreciation, or comprehension.

    Synonyms:
    undiscerning, unperceiving
    Antonyms:
    sensitive
  3. stupid or foolish, as persons or actions.

    Synonyms:
    asinine, witless, inane, idiotic, silly
    Antonyms:
    intelligent
  4. nonsensical or meaningless, as words.

    This letter is either cryptic or senseless.


senseless British  
/ ˈsɛnslɪs /

adjective

  1. lacking in sense; foolish

    a senseless plan

  2. lacking in feeling; unconscious

  3. lacking in perception; stupid

"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

Other Word Forms

Etymology

Origin of senseless

First recorded in 1550–60; sense + -less

Explanation

Senseless things have no meaning — you can't easily explain why they happen. Senseless people, on the other hand, are simply unconscious. This adjective often describes something terrible or violent, like a senseless accident or the senseless destruction of a city. It can also mean "done without thinking," or "lacking understanding," so a senseless student will give the teacher a blank look when their name is called, and a hiking trip across the Rockies in the winter would be senseless too. The "unconscious" meaning is the oldest, dating from the 1550s.

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Vocabulary lists containing senseless

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.

Middleton said the attacks on the Fountain estate "are absolutely senseless".

From BBC • May 6, 2026

After his audience with Macron, the pope met with bishops from the Chaldean Church of Baghdad, whom he called "signs of hope in a world marked by senseless and inhuman violence".

From Barron's • Apr. 10, 2026

Speaking after the verdict, investigating officer Craig Nicholson described the crash as a "senseless tragedy".

From Barron's • Feb. 2, 2026

He said he was canceling all meetings with Iranian officials “until the senseless killing of protesters stops.”

From The Wall Street Journal • Jan. 14, 2026

Neumann Two stands there with his new haircut, his fingers playing senseless trills on the stock of his rifle.

From "All the Light We Cannot See" by Anthony Doerr

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