Antonyms of soulless:
sensitive, benevolent, benignant, gentle, kind, clement, indulgent, lenient, mild, cordial, friendly, good-natured, good-tempered, gracious, tolerant, understanding, affectionate, fond, loving, charitable, compassionate, humane, kindhearted, kindly, merciful, softhearted, sympathetic, tender, tenderhearted, warm, warmhearted.
Examples of usage:
  1. The whole thing seemed artificial, soulless, hectic, unreal.
    "The Silent Isle", Arthur Christopher Benson.
  2. But as passionate desire is not of necessity faithless we are distressed and puzzled by her soulless wantonness.
    "The Man Shakespeare", Frank Harris.
  3. But just as criticism undermined the immaturities and exaggerations of the older animism, so is it undermining the more dangerous arrogance of an exaggerated and soulless materialism.
    "Nature Mysticism", J. Edward Mercer.