cold-blooded

cold–blood·ed

adjective \ˈkōl(d)-ˈblə-dəd\

Definition of COLD-BLOODED

1

a : done or acting without consideration, compunction, or clemency <cold–blooded murder>

b : matter-of-fact, emotionless <a cold–blooded assessment>

2

: having cold blood; specifically : having a body temperature not internally regulated but approximating that of the environment

3

or cold·blood \-ˈbləd\ : of mixed or inferior breeding

4

: noticeably sensitive to cold

— cold–blood·ed·ly adverb

— cold–blood·ed·ness noun

First Known Use of COLD-BLOODED

1595

Related to COLD-BLOODED

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 (also stoney), stonyhearted, take-no-prisoners, thick-skinned, uncharitable, unfeeling, unmerciful, unsparing, unsympathetic

Antonyms

charitable, compassionate, humane, kindhearted, kindly, merciful, sensitive, softhearted, sympathetic, tender, tenderhearted, warm, warmhearted

Related Words

boorish, heedless, inconsiderate, thoughtless, uncaring, unfriendly, unloving, unthinking; grim, hard-bitten, harsh, heavy-handed, ironfisted, ironhanded, jackbooted, knock-down, drag-out (or 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, frosty

Near Antonyms

benevolent, benignant, gentle, kind; clement, indulgent, lenient, mild; cordial, friendly, good-natured, good-tempered, gracious; tolerant, understanding; affectionate, fond, loving

cold–blood·ed

adjective \ˈkōl(d)-ˈbləd-əd\   (Medical Dictionary)

Medical Definition of COLD–BLOODED

: having a body temperature not internally regulated but approximating that of the environment : poikilothermic <cold–blooded amphibians and reptiles>

—cold–blood·ed·ness noun