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Synonyms

knotty

American  
[not-ee] / ˈnɒt i /

adjective

knottier, knottiest
  1. having knots; full of knots.

    a knotty piece of wood.

  2. involved, intricate, or difficult.

    a knotty problem.

    Synonyms:
    complicated, complex

knotty British  
/ ˈnɒtɪ /

adjective

  1. (of wood, rope, etc) full of or characterized by knots

  2. extremely difficult or intricate

"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

  • knottily adverb
  • knottiness noun
  • unknotty adjective

Etymology

Origin of knotty

First recorded in 1200–50, knotty is from the Middle English word cnotti. See knot 1, -y 1

Explanation

Whether it’s pine or problems, sometimes the word knotty can apply to both. Knotty can describe something that has a lot of knots, either literally or figuratively. The adjective knotty is a way to describe something that’s covered in knots. It can be used in a literal sense to refer to wood that is covered in hard, irregular knots — you’ve probably seen these circular, knobby imperfections that sometime appear on wood. The word can also be used figuratively to describe something that is intricate and difficult to solve, such as a knotty political problem involving two warring nations or a knotty legal issue involving complicated constitutional issues.

Keep Reading on Vocabulary.com

Vocabulary lists containing knotty

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.

But she’s a reluctant sleuth in a knotty case with a head full of noise and a shaky hand on the lighter.

From The Wall Street Journal • Nov. 13, 2025

It’s the latest in a series of knotty characters embraced by Arquette, 57.

From The Wall Street Journal • Oct. 20, 2025

What constitutes romance is different for everyone, and when you get to the matter of love itself, issues become even more knotty.

From Salon • Jun. 14, 2025

There’s a comprehensiveness to how “We Are Guardians” lays out a big, knotty problem of environment, politics, geography and business — internationalized yet hyper-local — while spotlighting the Indigenous push-back efforts.

From Los Angeles Times • Jun. 6, 2025

Modeling flight at transonic speeds was a particularly knotty problem, because of the subsonic and supersonic winds that passed over the plane or model simultaneously.

From "Hidden Figures" by Margot Lee Shetterly