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Synonyms

fallow

1 American  
[fal-oh] / ˈfæl oʊ /

adjective

  1. (of land) plowed and left unseeded for a season or more; uncultivated.

  2. not in use; inactive.

    My creative energies have lain fallow this year.


noun

  1. land that has undergone plowing and harrowing and has been left unseeded for one or more growing seasons.

verb (used with object)

  1. to make (land) fallow for agricultural purposes.

fallow 2 American  
[fal-oh] / ˈfæl oʊ /

adjective

  1. pale-yellow; light-brown; dun.


fallow 1 British  
/ ˈfæləʊ /

adjective

  1. (of land) left unseeded after being ploughed and harrowed to regain fertility for a crop

  2. (of an idea, state of mind, etc) undeveloped or inactive, but potentially useful

"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

noun

  1. land treated in this way

"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

verb

  1. (tr) to leave (land) unseeded after ploughing and harrowing it

"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
fallow 2 British  
/ ˈfæləʊ /

adjective

  1. of a light yellowish-brown colour

"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 fallow1

1275–1325; Middle English falwe; compare Old English fealga, plural of *fealh, as gloss of Medieval Latin occas harrows

Origin of fallow2

before 1000; Middle English fal ( o ) we, Old English fealu; cognate with German falb

Explanation

Something that is fallow is left unused. If you’re smart but lazy, someone might say you have a fallow mind. We use the word to talk about any unused resource, it started as a work about land. Fallow comes from the old English word for plowing, and refers to the practice of leaving fields unplowed in rotation — when a field lies fallow, the soil regains nutrients that are sucked up by over-planting.

Keep Reading on Vocabulary.com

Vocabulary lists containing fallow

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.

Fallow periods often lead to renewal, and that is the case for Weyerhaeuser stock—especially for investors seeking income over a long period.

From Barron's • Dec. 5, 2025

Katie Fallow, a senior counsel for the Knight Institute who brought the suit against Trump, said something along the same lines.

From Slate • Nov. 1, 2023

Fallow deer, a symbol of Rhodes, were found lying dead on the roadside.

From Seattle Times • Aug. 4, 2023

Katie Fallow, a lawyer with the Knight First Amendment Institute at Columbia University, which had sued Mr. Trump, said in a statement that the question the justices agreed to decide had only become more pressing.

From New York Times • Apr. 24, 2023

Our proof sheet came out with the message, "We Can Fallow!"

From Land of the Burnt Thigh by Voorhies, Stephen J.