Answer:

INTENSE

Answer	Crossword Clue
INTENSE	Profound
INTENSE	Deeply felt
INTENSE	Hard-working

INTENSE	Very, very serious
INTENSE	Acute
INTENSE	Ardent
INTENSE	Charged
INTENSE	Like extreme emotions
INTENSE	Strong, as feelings
INTENSE	High-powered
INTENSE	Like nail-biters

INTENSE	Strong
INTENSE	Impassioned
INTENSE	Extreme
INTENSE	Very strong
INTENSE	Type A, perhaps
INTENSE	Passionate
INTENSE	Fervent
INTENSE	Determined

INTENSE	Vehement
INTENSE	Pungent, for example
INTENSE	Demanding
INTENSE	Earnest
INTENSE	Fierce
INTENSE	Fervid
INTENSE	Very great
INTENSE	Gung-ho

INTENSE	Concentrated
INTENSE	Vibrant
INTENSE	Type-A
INTENSE	Very emotional
INTENSE	High-pressure
INTENSE	Expressive of strong emotion.
INTENSE	Feeling deeply.
INTENSE	Quality of Heathcliff's emotions.

INTENSE	Fervent.
INTENSE	Extreme.
INTENSE	High-strung.
INTENSE	Deep.
INTENSE	Profoundly earnest.