mentally

adverb

men·​tal·​ly ˈmen-tᵊl-ē 

1

: in the mind

Mentally he promised himself that he would never again use a collar on any living creature.

—Brian Jacques

: using the mind

able to mentally calculate large sums

2

: with regard to the mind or its capacity

physically and mentally healthy people

a mentally competent adult

a mentally challenging activity

… if you try to hide the fact that you feel mentally inadequate, and so go around making jokes about your own dullness and acting as if it didn't bother you at all …

—David Foster Wallace

I felt too hungry and tired and mentally overloaded to ask any more questions.

—Rick Riordan

Examples of mentally in a Sentence

Recent Examples on the Web

While most meditation practices ask you to stay mentally engaged, NSDR asks you to follow along, let go, and remain passive throughout the exercise. — Mira Miller, Verywell Health, 28 June 2026

Her grandfather was mentally ill, an alcoholic; her grandmother attempted suicide multiple times in a nearby river. — Literary Hub, 26 June 2026

On June 28, red-hot Mars will conclude its journey through slow-and-steady Taurus, and officially enter the swift and chatty sign of Gemini, setting the backdrop for more cerebral and mentally charged vibes. — Valerie Mesa, PEOPLE, 26 June 2026

After that for me it was mentally decided. — Chris Marshall-Bell, New York Times, 26 June 2026

Word History

First Known Use

15th century, in the meaning defined at sense 1

Rhymes for mentally

• accidentally
• detrimentally
• fundamentally
• governmentally
• incidentally
• incrementally
• instrumentally
• sentimentally
• temperamentally
• coincidentally
• environmentally
• experimentally