Lacking in fervour or zeal, unenthusiastic; lacking heartiness or warmth of interest. Cf. cold, adj. 7a lukewarm, adj. 2.

= lukewarm, adj. 2.

Moderately or slightly warm; lukewarm. figurative. = lukewarm, adj. 2.

Of persons, their actions, attributes, etc.: Having little warmth or depth of feeling, lacking zeal, enthusiasm or ardour, indifferent.

(un-, prefix1 affix 1.)

Marked or characterized by a lack of true faith; devoid of spiritual qualities. Now somewhat rare and coloured by other senses.

Lacking zeal; devoid of enthusiasm for or devotion to a cause, belief, undertaking, etc.

Wanting in strength or vigour. Of actions, wishes, purposes: Half-hearted, languid, feeble.

(un-, prefix1 affix 1.)

tepid, lukewarm (obsolete).

Having the fault for which the Church of Laodicea is reproached in Revelation 3:15, 16; hence, ‘lukewarm, neither cold nor hot’, indifferent in…

Of action, speech, etc.: lacking in enthusiasm or commitment; not heartfelt or zealous. Cf. half-hearted, adj. 1.

(un-, prefix1 affix 1.)

Wanting in fullness or heartiness.

(un-, prefix1 affix 1)

tepid.

Somewhat cool (in various senses).

figurative. Lacking in enthusiasm or warmth; frosty, aloof; (also) steely, unruffled, intensely calm.

That has lost motivation; less eager to work, study, or make an effort; unenthusiastic, unstimulated.

Mediocre; unexceptional, uninspiring; (also) unenthusiastic.