Answer: concentrated

AnswerCrossword Clue
CONCENTRATEDStrong.
concentrated(of a substance or solution) Present in a high proportion relative to other substances; having had water or other diluting agent removed or reduced
concentratedGathered in one place
concentratedWholly directed to one thing; intense
concentratedCONCENTRATE, to bring or direct toward a common center or objective