least

1 of 3

adjective

superlative of little entry 1

1
: lowest in importance or position
It's least on my list of worries.
2
a
: smallest in size or degree
The least noise would startle her.
b
: being a member of a kind distinguished by diminutive size
the least bittern
c
: smallest possible : slightest
believed that the least government was the best governmentIrving Stone

least

2 of 3

noun

: one that is least

least

3 of 3

adverb

superlative of little entry 2

: in the smallest or lowest degree
Phrases
at least
1
: at the minimum
at least once a week
2
: in any case
at least you have a choice
least of all
: especially not
no one, least of all the children, paid attention

Examples of least in a Sentence

Adverb Who was the least at fault in the case? He asked me to help him when I least expected it. That was the least important of her reasons. That was the least interesting book I have ever read.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adjective
The critical role underpins the nation’s defense as the ultimate security guarantee, and at least one of the boats is deployed in an unknown location at sea every minute of every day, according to a press release. Prabhat Ranjan Mishra, Interesting Engineering, 20 Oct. 2025 Advertisement Minimal protections for football’s youngest players Experts argue that youth football is the least regulated of all. Alana Semuels, Time, 20 Oct. 2025
Noun
The dish was created in 1926 at the Brown Hotel by chef Fred K. Schmidt after guests got bored with traditional ham and egg suppers (or so legend says, at leasts). Rae Johnson, The Courier-Journal, 28 Mar. 2023 This is one of the ideas that have long made electoral politics a graveyard for the American left: the hope of a post-political, revolutionary campaign built on the backs of the voters most sympathetic to their cause and least likely to vote. Osita Nwanevu, The New Republic, 19 Mar. 2020
Adverb
The crash killed at least 16 people and injured several others after a steel cable connecting the historic Glória funicular’s two cars snapped, a preliminary investigation found. Angélica Franganillo Díaz, CNN Money, 21 Oct. 2025 The last time that sellers significantly outnumbered buyers, in November 2018, home-price growth shrank to the lowest level in at least six years, with prices rising 2 percent from a year earlier to $283,912. Giulia Carbonaro, MSNBC Newsweek, 21 Oct. 2025 See All Example Sentences for least

Word History

Etymology

Adjective, Noun, and Adverb

Middle English leest, from Old English lǣst, superlative of lǣssa less

First Known Use

Adjective

before the 12th century, in the meaning defined at sense 1

Noun

12th century, in the meaning defined at sense 1

Adverb

13th century, in the meaning defined above

Time Traveler
The first known use of least was before the 12th century

Browse Nearby Words

Cite this Entry

“Least.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/least. Accessed 23 Oct. 2025.

Kids Definition

least

1 of 3 adjective
1
: lowest in importance or position
2
: smallest in size or degree

least

2 of 3 noun
: one that is least : something of the lowest possible value or importance

least

3 of 3 adverb
: in the smallest or lowest degree

Medical Definition

least

superlative of little

More from Merriam-Webster on least

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