lukewarm

Mildly warm; tepid.

Lacking conviction or enthusiasm; indifferent.

Only moderately warm; tepid; neither cold nor hot.

Not ardent; not zealous; cool; indifferent: as, lukewarm obedience.

Moderately warm; neither cold nor hot; tepid.

Not ardent; not zealous; cool; indifferent.

Of a temperature between warm and cool.

Not very enthusiastic (about a proposal or an idea).

moderately warm

feeling or showing little interest or enthusiasm