intensity

noun

in·​ten·​si·​ty in-ˈten(t)-sə-tē 

plural intensities

1

: the quality or state of being intense

especially : extreme degree of strength, force, energy, or feeling

2

: the magnitude of a quantity (such as force or energy) per unit (as of area, charge, mass, or time)

3

: saturation sense 4a

Synonyms of intensity

• enthusiasm
• emotion
• intenseness
• warmth
• passionateness
• passion
• violence

Examples of intensity in a Sentence

the intensity of the sun's rays

the intensity of the argument

The sun shone with great intensity.

Recent Examples on the Web

Snow will likely begin by about midnight Sunday morning and then continue through the whole day Sunday, increasing in intensity later in the day as the low strengthens off the coast. —Bill Kelly, CBS News, 22 Jan. 2026

They’re designed for higher intensity workouts like road running, so they’re optimized with airy cushioning to absorb impact around your heels, the balls of your feet, your ankles, and knees. —Clara McMahon, PEOPLE, 22 Jan. 2026

As loyalty and conformity often disguised as anticommunism suppressed the fervency for civil rights that punctuated the war years, Du Bois’s conflict increased in intensity for a Black America expecting an improved quality of life in peacetime. —Literary Hub, 21 Jan. 2026

Best Time To Visit The best time to visit Delray Beach is from late April through early June, when the city still hums with energy but sheds the intensity of peak season. —Lauren Dana Ellman, Travel + Leisure, 21 Jan. 2026

Word History

First Known Use

1665, in the meaning defined at sense 1

Phrases Containing intensity

• high-intensity interval training
• hyper-intensity

Rhymes for intensity

• immensity
• propensity
• density

Kids Definition

intensity

noun

in·​ten·​si·​ty in-ˈten(t)-sət-ē 

plural intensities

1

: the quality or state of being intense

especially : extreme strength, force, or feeling

2

: the degree or amount of a quality or condition

the intensity of an electric field

Medical Definition

intensity

noun

in·​ten·​si·​ty in-ˈten(t)-sət-ē 

plural intensities

1

: the quality or state of being intense

especially : extreme degree of strength, force, energy, or feeling

2

: the magnitude of a quantity (as force or energy) per unit (as of surface, charge, mass, or time)

3

: saturation sense 4a