1. (n.) The quality or state of being warm; gentle heat; as, the warmth of the sun; the warmth of the blood; vital warmth.

2. (n.) A state of lively and excited interest; zeal; ardor; fervor; passion; enthusiasm; earnestness; as, the warmth of love or piety; he replied with much warmth.

3. (n.) The glowing effect which arises from the use of warm colors; hence, any similar appearance or effect in a painting, or work of color.

abandon activity affectionateness amiability animal heat animation ardency ardor benignancy benignity blood heat blush body heat bonhomie brio briskness brotherhood burning calidity caloric coal heat commitment committedness compassion convected heat cordiality dedication devotedness devotion devoutness earnestness ecstasy elan electric heat enthusiasm excitement faith faithfulness feeling of kinship fellow feeling fervency fervidness fervor fever fever heat fidelity fieriness fire flush fraternal feeling friendliness furor fury gas heat generosity geniality glow goodness goodness of heart graciousness gusto healthy glow heart heart of gold heartiness heat heatedness heating hospitableness hospitality hot-air heat hotness humaneness humanity hypothermia impassionedness impetuosity impetus incalescence induction heat intensity intentness joie de vivre kindheartedness kindliness kindly disposition kindness liberality life liveliness loving kindness loyalty lustiness mettle molecular heat neighborliness niceness oil heat open door openheartedness passion passionateness perkiness pertness radiant heat receptiveness relish resolution robustness savor seriousness sincerity softheartedness solar heat soul soul of kindness spirit spiritedness steam heat superheat superheatedness sympathy tenderheartedness thermal radiation ultraviolet heat vehemence verve vivacity warm color warmheartedness warmness warmth of color warmth of feeling warmth of heart zeal zest zestfulness