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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)

fallows, present (3rd person singular) fallowed, past participle, past fallowing present participle
  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

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Participles

Conjugated Forms

Present

Past

Future

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.

Glastonbury's organisers said they were on a fallow year this year and they maintain that the festival offers "great value for money" with more than 100 stages.

From BBC • May 30, 2026

Korda said those fallow years humbled her, but she was about to have plenty of reasons to boast.

From The Wall Street Journal • May 5, 2026

The 2025-26 Broadway season was characterized by long fallow periods interrupted by an onslaught of eagerly awaited openings.

From Los Angeles Times • May 5, 2026

Formula 1's unscheduled fallow April is nearing its end, with the 2026 season resuming with the Miami Grand Prix, from 1-3 May.

From BBC • Apr. 21, 2026

The fear was that if the bomb failed, government support for all other work in the field would cease, and research into the atom’s benefits to society would go fallow.

From "Big Science" by Michael Hiltzik

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