mental
1 Americanadjective
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of or relating to the mind.
mental powers;
mental suffering.
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of, relating to, or affected by a disorder of the mind.
a mental patient;
mental illness.
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providing care for persons with disordered minds, emotions, etc..
a mental hospital.
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performed by or existing in the mind.
mental arithmetic;
a mental note.
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pertaining to intellectuals or intellectual activity.
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Informal. slightly daft; out of one's mind; crazy.
He's mental.
noun
adjective
adjective
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of or involving the mind or an intellectual process
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occurring only in the mind
mental calculations
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Preferred form: psychiatric. affected by mental illness
a mental patient
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Preferred form: psychiatric. concerned with care for persons with mental illness
a mental hospital
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slang insane
adjective
Usage
What does mental mean? Mental is an adjective that means relating to the mind. It is especially used in contrast with physical, which means relating to the body. Mental is commonly used in the context of psychological disorders or the care and treatment of people who have them. One of its most common uses is in the phrase mental health. Mental is sometimes used as a slang term with the same meaning as the informal sense of crazy, especially in the U. K. It’s typically used to describe a person or their behavior as being extreme or illogical in some way. Keep in mind, however, that when used in this way, words like crazy and mental may reinforce harmful stereotypes and associations with mental illness. Example: To be an elite athlete, you have to be physically strong, but you also have to perfect the mental aspects of your game.
Other Word Forms
Etymology
Origin of mental1
First recorded in 1375–1425; late Middle English, from Middle French, from Late Latin mentālis, equivalent to Latin ment- (stem of mēns ) mind + -ālis -al 1
Origin of mental2
First recorded in 1720–30; from Latin ment(um) “the chin” ( see mentum) + -al 1
Explanation
The adjective mental describes anything having to do with the mind, just as "physical" has to do with the body. Mental has to do with the intellect, the mind, or the brain. There's a history of mental illness in that family, which is interesting because physically they're all so amazing. Makes you wonder why they did so well in one department but not the other. Some argue that standardized tests are no measure of your mental abilities. All they do is tell you how well you did on the test. That would be like testing your emotional depth based on how tightly you hug people. A person's mental gifts are difficult to measure.
Vocabulary lists containing mental
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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.
Perhaps most importantly, it offers many physical and mental health benefits that go far beyond the numbers on the scale.
From Science Daily ● Aug. 22, 2026
But he said the constant public scrutiny she faced may not have allowed her room to address her mental health in private.
From BBC ● Aug. 21, 2026
On Thursday, hundreds of women, many of them wearing pink, gathered to show support for Clancy outside the courthouse in Massachusetts where her trial is taking place—a sign of growing awareness about postpartum mental health.
From The Wall Street Journal ● Aug. 21, 2026
According to court documents obtained by TMZ, Hilton’s visits must be supervised by a mental health professional or a family member both he and his mother agree upon.
From Los Angeles Times ● Aug. 21, 2026
The mental strain broke some, and others opted out of the program due to the overwhelming stress and pressure of it all and chose to work on campus in some other role.
From "Glitch" by Laura Martin
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
