Intense

интенси́вный

intensívnyj

(extreme or very high or strong in degree)

интенси́вный

intensívnyj

(under tension — see also strained, tense)

напряжённый

naprjažónnyj

(under tension — see also strained, tense)

си́льный

sílʹnyj

(extreme or very high or strong in degree)

стра́стный

strástnyj

(of feelings, thoughts, etc.: strongly focused — see also ardent, earnest, passionate)

стра́стный

strástnyj

(of a person: very emotional or passionate)

я́ркий

járkij

(of a thing: possessing some characteristic to an extreme or very high or strong degree)