intensive

a modifier that has little meaning except to intensify the meaning it modifies; "`up' in `finished up' is an intensifier"; "`honestly' in `I honestly don't know' is an intensifier"

characterized by a high degree or intensity; often used as a combining form; "the questioning was intensive"; "intensive care"; "research-intensive"; "a labor-intensive industry"

tending to give force or emphasis; "an intensive adverb"

of agriculture; intended to increase productivity of a fixed area by expending more capital and labor; "intensive agriculture"; "intensive conditions"