instinct
1 Americanadjective
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filled or infused with some animating principle (usually followed bywith ).
instinct with life.
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Obsolete. animated by some inner force.
noun
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the innate capacity of an animal to respond to a given stimulus in a relatively fixed way
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inborn intuitive power
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a natural and apparently innate aptitude
adjective
Other Word Forms
Noun Inflected Forms
Etymology
Origin of instinct1
First recorded in 1375–1425; late Middle English, from Latin instinctus “prompting, instigation, enthusiasm,” noun use of past participle of insting(uere) “to excite, incite, rouse,” from in- in- 2 + -stinguere, presumably, “to prick, mark by pricking” ( cf. distinct, instigate)
Origin of instinct2
First recorded in 1530–40; from Latin instinctus “excited, inspired,” past participle of instinguere “to excite, incite, rouse”; see instinct 1
Explanation
An instinct is something you don't need to learn — it happens naturally, without you even thinking about it. Babies cry by instinct, and ducks follow their mother by instinct. Animals and humans learn a lot of things from other animals and humans. But if there isn't any learning involved, then the behavior is an instinct. Instincts come naturally, like a baby's desire to feed. Some behaviors are a combination of instinct and learned behavior, like language. Others happen without any teaching at all, like the instinct to run when you see a big, hungry looking bear. When you see the word instinct, think natural response.
Vocabulary lists containing instinct
Unit 1: Telling Details
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"Fears and Phobias," Vocabulary from the article
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"Is Survival Selfish?" Vocabulary from the argument
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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.
See Examples For:
“I kind of got away from those early days where I followed my instinct more,” he said.
From The Wall Street Journal ● Oct. 15, 2026
“He told me, ‘As long as you feel good about it, don’t read the comments, just follow your instinct.’
From Los Angeles Times ● Oct. 12, 2026
David proved "his instinct for showmanship", Schatz said.
From Barron's ● Oct. 9, 2026
He explains rather than simply demonstrates, an instinct that has surprised the coaching staff as much as his football has.
From BBC ● Oct. 3, 2026
The movement came to her like an instinct.
From "Beasts of Prey" by Ayana Gray
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Ashe pleads with her younger self to trust her instincts.
From BBC ● Oct. 9, 2026
Coleman, at 170 pounds and the cousin of former Newbury Park quarterback Brady Smigiel, didn’t become a quarterback without having some quick instincts and intelligence.
From Los Angeles Times ● Oct. 3, 2026
Kritenbrink, for his part, said the summit has done "nothing to curb the competitive instincts of both sides on AI."
From Barron's ● Sep. 26, 2026
He said he had reason to believe that Harris’ own instincts might have led somewhere different in that election but that she never had enough control over her own campaign to follow them.
From Slate ● Sep. 25, 2026
His instincts would have told him togo straight ahead, but a footpath sign pointed to the right.
From "Stormbreaker" by Anthony Horowitz
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