形容詞 heartless:

1. lacking in feeling or pity or warmth
   同義詞：hardhearted
2. devoid of courage or enthusiasm

1. "Do you know that Mary hasn't once driven over to see her father since he has been ill?" "I can well believe it. She always was a heartless girl."
   "你知道嗎？自從瑪麗的父親病了，她一次也沒(méi)有開(kāi)車(chē)去看他。""我相信，她原來(lái)就是一個(gè)無(wú)情無(wú)義的女孩。"
2. The heartless witch cast a spell on the poor little girl.
   狠心的女巫對(duì)孤苦無(wú)助的小女孩施發(fā)妖術(shù)。
3. He later journeyed through the isle of Lemnos whose bold and heartless females, earlier, had slaughtered every male upon the island;
   他在那些大膽而殘忍的婦女把所有她們的男子殺死之后，曾經(jīng)在雷姆諾島旁邊經(jīng)過(guò)。

heart.less

adj.（形容詞）
Devoid of compassion or feeling; pitiless.
缺乏同情或感情的；無(wú)情的
Archaic Devoid of courage or enthusiasm; spiritless.
【古語(yǔ)】 缺乏勇氣或熱情的；沒(méi)精打采的

【引伸】
heart.lessly
adv.（副詞）
heart.lessness
n.（名詞）