Synonyms of intense
1
a
: existing in an extreme degree
The excitement was intense.
intense pain
b
: having or showing a characteristic in extreme degree
intense colors
2
: marked by or expressive of great zeal, energy, determination, or concentration
intense effort
3
a
: exhibiting strong feeling or earnestness of purpose
an intense student
b
: deeply felt
intensely adverb
intenseness noun

Examples of intense in a Sentence

He shielded his eyes from the intense flash of light. She has an intense dislike for her husband's friend. After many years of intense study, he received his medical degree. School reform is a subject of intense debate. The work requires intense concentration. He was an intense young man who was very determined to do well in school.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
His new life was an intense crucible of monastic discipline, complex logic, and rote memorization. Charlie Campbell, Time, 9 July 2026 The intense, carrion-like odor of the slime attracts insects, which then eat the slime and excrete it, with the spores later germinating in the excrement. Leah Hudson, Popular Science, 9 July 2026 During periods of intense rainfall, the risk of flooding increases, particularly in low-lying and flood-prone areas. Kansas City Star Weather Bot, Kansas City Star, 9 July 2026 Al-Geneina and al-Fashir saw the most intense violence in the war between the Sudanese army and the RSF that continued for more than three years. Reuters, NBC news, 9 July 2026 See All Example Sentences for intense

Word History

Etymology

Middle English, from Middle French, from Latin intensus, from past participle of intendere to stretch out

First Known Use

15th century, in the meaning defined at sense 1a

Time Traveler
The first known use of intense was in the 15th century

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Cite this Entry

“Intense.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/intense. Accessed 10 Jul. 2026.

Kids Definition

intense

adjective
1
: existing in an extreme degree
intense pain
2
: done or performed with great zeal, energy, or eagerness
intense study
3
: feeling deeply
an intense actor
intensely adverb
intenseness noun

Medical Definition

intense

adjective
1
a
: existing in an extreme degree
intense anxiety
b
: extremely marked or pronounced
a neurodermatitis with intense itching and burning of the skinH. G. Armstrong
c
: very large or considerable
intense radiation
2
a
: feeling deeply especially by nature or temperament
b
: deeply felt
intense emotions
intensely adverb

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