Answer:

tepid

Answer	Crossword Clue
TEPID	Luke warm
TEPID	Lukewarm
TEPID	Luke-warm

TEPID	Not so hot
TEPID	Halfhearted
TEPID	Hardly overwhelming, as a response
TEPID	Just above room temperature
TEPID	Unenthusiastic, as a response
TEPID	Decidedly unenthusiastic
TEPID	Indifferent
TEPID	Somewhat warm

TEPID	Hardly enthusiastic
TEPID	So-so
TEPID	Not hot or cold
TEPID	Neither hot nor cold
TEPID	Not very hot
TEPID	Half-hearted
TEPID	Middling, temperaturewise
TEPID	Not so hot?

TEPID	Not exactly enthusiastic
TEPID	Not too hot
TEPID	Moderate
TEPID	Warmish
TEPID	Hardly rah-rah
TEPID	Slightly warm
TEPID	Barely warm
TEPID	Mild

TEPID	Hardly hot
TEPID	Fair
TEPID	Lackluster
TEPID	Less than enthusiastic
TEPID	Lukewarm.
TEPID	Of medium temperature.
TEPID	Moderately warm.
TEPID	Not hot, not cold.

TEPID	Slightly heated.
TEPID	Not very warm.
TEPID	Barely warm.
TEPID	Not enthusiastic at all.
TEPID	Not too hot.