Learn how to say Intensiveness correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word intensive:
1concentrated on a single subject or into a short time; very thorough or vigorous:
she undertook an intensive Arabic course
eight days of intensive arms talks
(of agriculture) aiming to achieve maximum production within a limited area, especially by using chemical and technological aids:
less intensive, more environmentally friendly forms of farming
Often contrasted with extensive (sense 2).
[usually in combination] (typically in business and economics) concentrating on or making much use of a specified thing:
2 Grammar (of an adjective, adverb, or particle) giving force or emphasis.
3chiefly Physics denoting a property which is measured in terms of intensity (e.g. concentration) rather than of extent (e.g. volume), and so is not simply increased by addition of one thing to another.
an intensive adjective, adverb, or particle; an intensifier.
late Middle English (in the sense ‘vehement, intense’): from French intensif, -ive or medieval Latin intensivus, from intendere (see intend)