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Synonyms

tedious

American  
[tee-dee-uhs, tee-juhs] / ˈti di əs, ˈti dʒəs /

adjective

  1. marked by monotony or tedium; long and tiresome.

    tedious tasks; a tedious journey.

    Synonyms:
    dull, monotonous, boring, wearing
  2. wordy so as to cause weariness or boredom, as a speaker, a writer, or the work they produce; prolix.


tedious British  
/ ˈtiːdɪəs /

adjective

  1. causing fatigue or tedium; monotonous

  2. obsolete progressing very slowly

"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

  • overtedious adjective
  • overtediously adverb
  • overtediousness noun
  • tediously adverb
  • tediousness noun
  • untedious adjective
  • untediously adverb

Etymology

Origin of tedious

First recorded in 1375–1425; late Middle English, from Medieval Latin tēdiōsus, Late Latin taediōsus, from taedi(um) tedium + -ōsus -ous

Explanation

If something is tedious, it's boring. If you're anxious to get outside and enjoy the sun, even the best lecture will seem tedious. Tedious is the adjective from tedium, which is both Latin and English for boredom. You ordinarily wouldn't use tedious for people, just things; you might say "His speeches are tedious," but usually not "He is tedious." Something that is tedious could also be called tiresome. Shakespeare's Friar Laurence says "I will be brief, for my short date of breath / Is not so long as is a tedious tale."

Keep Reading on Vocabulary.com

Vocabulary lists containing tedious

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.

The FDA’s road to regulating compounding pharmacies — and by extension the peptides they seek to dispense — has been long and tedious.

From Salon • Apr. 4, 2026

It took roughly two weeks of tedious work, sifting through hours of grainy recordings.

From Los Angeles Times • Mar. 30, 2026

But so many better horror features have been constructed along the same lines—“X,” “House of 1000 Corpses”— that this one comes across as merely a tedious also-ran.

From The Wall Street Journal • Mar. 26, 2026

Among the many tedious features of market panics is the well-known cognitive error of catastrophizing.

From MarketWatch • Mar. 13, 2026

Speaking down to the cobblestones, he asked me whether I found the talks as tedious as he did.

From "Double Helix" by James D. Watson