热情的英文有：passion、enthusiasm、warmth等等。
passion：n. 热情、激情。
例句：He wasn't sure whether his passion for water power had some deep Freudian significance. 他无法肯定他对水力如此钟情是否有着某种弗洛伊德分析的深层意义。
复数：passions
2.enthusiasm: n. 热心 、热忱、热情、热衷的事物。
例句：His strategy was to canalize the enthusiasm of the diehards into party channels.
他的策略是将顽固派的热情引导到党派渠道中来。
短语：enthusiasm for 热情；对...积极；热忱。
great enthusiasm 极大的热情。
show enthusiasm 表现出热情。
复数：enthusiasms
反义词：
1.indifferent adj. 冷淡的、不关心的。
例句：It is worse to intend harm than to be indifferent.有意伤害比漠不关心更恶劣。
短语：be indifferent to 对...冷漠；对...无动于衷。
indifferent to 不关心；漠视；漠不关心。
indifferent performance 水平不高的表演；不令人满意的表演。
2.unconcerned adj. 漠不关心的、不感兴趣的。
例句：Scott seemed unconcerned by his companion's problem.
斯科特对同伴的困难似乎毫不关心。