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

Aim to get at least 30 minutes of moderate-intensity exercise most days. —Carrie Madormo, Verywell Health, 30 Nov. 2025

The fuel itself can also be costly compared to natural gas or firewood, and the flames are harder to control in terms of size and intensity. —Angie Hicks, Boston Herald, 30 Nov. 2025

Playing with that kind of intensity is exhausting. —Louisa Thomas, New Yorker, 30 Nov. 2025

The models utilize these equations to predict what might happen in the atmosphere, including the track and intensity of hurricanes. —Greg Allen, NPR, 29 Nov. 2025

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