killer

²killer

adj

Definition of KILLER

1

: strikingly impressive or effective <a killer smile> <a killer résumé>

2

: extremely difficult to deal with <a killer fastball>; also : causing death or devastation <a killer tornado>

Examples of KILLER

1. <killer viruses that claimed millions of lives>
2. <a killer exercise program guaranteed to whip you into shape>

First Known Use of KILLER

1951

Related to KILLER

Synonyms: baleful, deathly, fatal, fell, deadly, lethal, mortal, murderous, pestilent, terminal, vital

Antonyms: healthful, healthy, nonfatal, nonlethal, wholesome

Related Words: baneful, deleterious, destructive, harmful, injurious, noxious, pernicious, truculent; infectious, infective, pestilential, poisonous, sublethal, toxic, virulent; dangerous, grave, grievous, hazardous, jeopardizing, menacing, parlous, perilous, risky, serious, threatening, ugly, unhealthy, unsound; bloody, internecine, sanguinary, sanguine

Near Antonyms: beneficial, restorative, salubrious, salutary; alleviative, corrective, curative, remedial, tonic; advantageous, beneficial, useful; nonpoisonous, nontoxic, safe

see all synonyms and antonyms

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Rhymes with KILLER

giller, griller, hiller, pillar, spiller, swiller, tiller, triller