noun, plural in·ten·si·ties.
  1. the quality or condition of being intense.
  2. great energy, strength, concentration, vehemence, etc., as of activity, thought, or feeling: He went at the job with great intensity.
  3. a high or extreme degree, as of cold or heat.
  4. the degree or extent to which something is intense.
  5. a high degree of emotional excitement; depth of feeling: The poem lacked intensity and left me unmoved.
  6. the strength or sharpness of a color due especially to its degree of freedom from admixture with its complementary color.
  7. Physics. magnitude, as of energy or a force per unit of area, volume, time, etc.
  8. Speech.
    1. the correlate of physical energy and the degree of loudness of a speech sound.
    2. the relative carrying power of vocal utterance.

Origin of intensity

First recorded in 1655–65; intense + -ity
Related formso·ver·in·ten·si·ty, nounsu·per·in·ten·si·ty, noun

Synonyms for intensity Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for intensities

Historical Examples of intensities

British Dictionary definitions for intensities


noun plural -ties
  1. the state or quality of being intense
  2. extreme force, degree, or amount
  3. physics
    1. a measure of field strength or of the energy transmitted by radiationSee radiant intensity, luminous intensity
    2. (of sound in a specified direction) the average rate of flow of sound energy, usually in watts, for one period through unit area at right angles to the specified directionSymbol: I
  4. Also called: earthquake intensity geology a measure of the size of an earthquake based on observation of the effects of the shock at the earth's surface. Specified on the Mercalli scaleSee Mercalli scale, Richter scale
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for intensities



formed in English 1660s from intense + -ity. Earlier was intenseness (1610s). Sense of "extreme depth of feeling" first recorded 1830.

Online Etymology Dictionary, © 2010 Douglas Harper