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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

Derived 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.

Keep Reading on Vocabulary.com

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.

“We will forever live with the burden of wondering whether there was more we could have done to help prevent this senseless tragedy.”

From Los Angeles Times • May 23, 2026

"It's senseless really, but I think it is born out of frustration," she said.

From BBC • Mar. 1, 2026

In a statement, the Western Cape regional authorities condemned the "senseless act", saying "no learner should ever face danger while travelling to or from school".

From BBC • Feb. 26, 2026

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

From Barron's • Feb. 2, 2026

Again I had to suppress the urge to roll my eyes at this woman’s senseless pursuit of a husband.

From "The Detective's Assistant" by Kate Hannigan

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