Concentrated on a single area or subject or into a short time; very thorough or vigorous. The course was intensive, covering a year's worth of material in just six weeks.
Involving a lot of effort or activity in a short period of time. The intensive training program left the athletes exhausted but well-prepared for the competition.
Relating to a method of farming that aims to produce as much as possible, usually with the use of chemicals. Intensive farming practices have increased crop yields but also raised environmental concerns.
Expressing emphasis or intensity; emphatic. In the sentence "I myself will do it," the word "myself" is an intensive pronoun.
Requiring or consuming a large amount of something, such as energy, labor, or capital. Steel manufacturing is an energy-intensive process.