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Synonyms

monotonous

American  
[muh-not-n-uhs] / məˈnɒt n əs /

adjective

  1. lacking in variety; tediously unvarying.

    the monotonous flat scenery.

    Synonyms:
    dull, boring, humdrum, tedious
  2. characterizing a sound continuing on one note.

  3. having very little inflection; limited to a narrow pitch range.


monotonous British  
/ məˈnɒtənəs /

adjective

  1. dull and tedious, esp because of repetition

  2. unvarying in pitch or cadence

"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 monotonous

From the Late Greek word monótonos, dating back to 1770–80. See mono-, tone, -ous

Explanation

When something goes on and on and on and on and on, the same way, for a long time, that's monotonous. Monotonous things are boring and repetitive, like that long story you've heard your brother tell a hundred times before. Ever hear a song that just sounds like the same thing over and over? Ever hear a dog that keeps barking all day? Or a voice that's dull and unchanging in tone? All those things are monotonous: they don't change much, and they're dull as dishwater. Anything tedious or humdrum is probably monotonous. If someone says you're being monotonous, try to vary your tone of voice or the things you're talking about.

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Vocabulary lists containing monotonous

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:

The concept centers on the idea of accidentally slipping out of normal reality and becoming trapped in this monotonous, labyrinthine environment with no clear exit.

From Science Daily Jul. 26, 2026

In contrast, the bees' uncertainty increases in visually monotonous environments.

From Science Daily Jun. 14, 2026

Another viral videogame, “The Exit 8,” in which the player is trapped in a monotonous Japanese subway station, was recently adapted into a feature film released by Neon this year.

From The Wall Street Journal Jun. 6, 2026

My mind flitted back to a conversation I had with my physical therapist about modern love: Dating in L.A. has become monotonous.

From Los Angeles Times Feb. 27, 2026

The incident had occurred and was gone for me: it was an incident of no moment, no romance, no interest in a sense; yet it marked with change one single hour of a monotonous life.

From "Jane Eyre" by Charlotte Brontë

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