adj.无情的，苛求的；adj.不节俭的
Merriam-Webster Online Dictionary
unsparing (adjective)1.
not merciful or forbearing - hard ruthless an unsparing satire an unsparing critic
2.
not frugal - liberal profuse unsparing generosity
Merriam-Webster Online Thesaurus
unsparing (adjective)1.
giving or sharing in abundance and without hesitation
SYNONYMS:
bighearted, bounteous, bountiful, charitable, free, freehanded, freehearted, fulsome, liberal, munificent, open, openhanded, unselfish, unsparing, unstintingRELATED WORDS:
extravagant, handsome, lavish, overgenerous, profuse; altruistic, beneficent, benevolent, hospitable, humanitarian, philanthropic ( philanthropical); big, greathearted, largehearted, magnanimous, openhearted; compassionate, good-hearted, kind, kindly, samaritan, sympatheticNEAR ANTONYMS:
mean, petty, small; frugal, spare, sparing, thrifty; chary, stinting; acquisitive, avaricious, avid, coveting, covetous, desirous, grasping, hoggish, itchy, mercenary, rapacious; begrudging, envious, grudging, resentful2.
having or showing a lack of sympathy or tender feelings
SYNONYMS:
affectless, callous, case-hardened, cold-blooded, compassionless, desensitized, hard-boiled, hard-hearted, heartless, indurate, inhuman, inhumane, insensate, insensitive, ironhearted, merciless, obdurate, pachydermatous, pitiless, remorseless, ruthless, slash-and-burn, soulless, stony ( stoney), stonyhearted, take-no-prisoners, thick-skinned, uncharitable, unfeeling, unmerciful, unsparing, unsympatheticRELATED WORDS:
boorish, heedless, inconsiderate, thoughtless, uncaring, unfriendly, unloving, unthinking; grim, hard-bitten, harsh, heavy-handed, ironfisted, ironhanded, jackbooted, knock-down, drag-out ( knock-down-and-drag-out), oppressive, rough, rough-and-tumble, severe, sledgehammer, stern, tough, ungentle; abusive, acrimonious, disagreeable, hateful, ill-natured, ill-tempered, malevolent, malicious, mean, rancorous, spiteful, surly, virulent; barbarous, bestial, brutal, brutish, cruel, evil-minded, savage, vicious; austere, cold, frostyNEAR ANTONYMS:
benevolent, benignant, gentle, kind; clement, indulgent, lenient, mild; cordial, friendly, good-natured, good-tempered, gracious; tolerant, understanding; affectionate, fond, loving