Synonyms for Lethal:

• adj.

  •all (adjective)
  • lethal.
  •deadly (adjective)
  • mortuary,
  • necrotic,
  • devastating.
  •deathly (adjective)
  • extreme.
  •destructive (adjective)
  • Eradicative,
  • Lethiferous,
  • Wrackful,
  • Wreckful,
  • Extirpative,
  • feller.
  •fateful (adjective)
  • hellfire.
  •hellfire (adjective)
  • fire-and-brimstone.
  •insalubrious (adjective)
  • in salubrious,
  • in-salubrious.
  •life-threatening (adjective)
  • un-safest,
  • un safest,
  • lifethreatening,
  • un-safe,
  • un safer,
  • un-safer,
  • touch go,
  • un safe.
  •mephitical (adjective)
  • Mephitical.
  •mortal (adjective)
  • more ending,
  • most ending,
  • remorseless.
  •murderous (adjective)
  • sanguinary,
  • slaughterous,
  • Sapping,
  • sanguineous.
  •pernicious (adjective)
  • maleficent.
  •pestilent/pestilential (adjective)
  • more contaminating,
  • more pestilent,
  • most tainting,
  • more tainting,
  • dis-eased,
  • dis eased,
  • most contaminating.
  •poison/poisonous (adjective)
  • more septic,
  • more toxiferous,
  • most toxiferous,
  • most infective,
  • more infective,
  • infective,
  • most septic.
  •sanguinary (adjective)
  • bloody minded.
  •suicidal (adjective)
  • de pressed,
  • de-pressed.
  •terminal (adjective)
  • in-curable,
  • more bounding,
  • hind most,
  • most bounding,
  • more period,
  • in curable,
  • laggest,
  • most period,
  • hind-most,
  • more limiting,
  • most limiting.
  •unsalutary (adjective)
  • un salutary,
  • un-salutary.
  •unwholesome (adjective)
  • un healthier,
  • un-healthy,
  • more contaminated,
  • un wholesome,
  • un-healthiest,
  • un-nutritious,
  • un healthy,
  • un nutritious,
  • more unnutritious,
  • un-wholesome,
  • most unnutritious,
  • un healthiest.
  •venomous (adjective)
  • more viperish,
  • more malefic,
  • most malefic,
  • most viperish,
  • most cussed,
  • more cussed.

• n.

  •
  • hazardous,
  • perilous,
  • unsafe,
  • risky,
  • disastrous,
  • dangerous,
  • ruinous.
  •
  • live,
  • vital.
  •deadly (noun)
  • study at deadly.

• Other synonyms:

  •miasmal
  • Miasmatic.
  •Other relevant words:
  • death chair,
  • decapitation,
  • violent,
  • goal,
  • departure,
  • dissolution,
  • incurable,
  • brutish,
  • auto-da-fe,
  • capital punishment,
  • amok,
  • maniacal,
  • decease,
  • happy dispatch,
  • death,
  • scarpines,
  • insecure,
  • blood-thirsty,
  • stake,
  • evil,
  • barbaric,
  • irremediable,
  • extremely,
  • devastation,
  • Decollation,
  • distinguished,
  • high-flying,
  • fate,
  • Noyade,
  • loss,
  • ferocious,
  • oddment,
  • insane,
  • demise,
  • halter,
  • electrocution,
  • ax,
  • execution,
  • impalement,
  • bloody,
  • mephitic,
  • fatally,
  • unhealthy,
  • guillotine,
  • noose,
  • triumphant,
  • big,
  • catastrophic,
  • desperate,
  • scrap,
  • exit,
  • truculent,
  • unwholesome,
  • lost,
  • lethally,
  • gone,
  • garrotte,
  • dead,
  • beyond saving,
  • final,
  • inhuman,
  • lethal gene,
  • bad,
  • fierce,
  • destruction,
  • remnant,
  • Nocuous,
  • fell,
  • gallows,
  • deadliness,
  • firing squad,
  • successful,
  • vesicant,
  • gas chamber,
  • amuck,
  • conclusion,
  • electric chair,
  • deadlier,
  • Mecate,
  • bowstring,
  • mortality,
  • cutthroat,
  • hopeless,
  • beyond repair,
  • irretrievable,
  • demolition,
  • thriving,
  • block,
  • miasmic,
  • cessation,
  • barbarous,
  • huge,
  • cruel,
  • berserk,
  • rope,
  • deadliest,
  • irreparable,
  • drop,
  • hanging,
  • gibbet,
  • beyond hope,
  • leading,
  • brilliant,
  • scaffold,
  • perniciously,
  • expiration,
  • cross,
  • mad,
  • tree,
  • cataclysmic,
  • crucifixion,
  • martyrdom,
  • doom,
  • bloodthirsty.

Paraphrases for Lethal:

• Equivalence

  • Adjective
    fatal.
  • Proper noun, singular
    fatal.

• Independent

  • Adjective
    pernicious, bloody, anti-personnel, catastrophic, wicked, disastrous, hazardous, toxic.

• Other Related

  • Adjective
    mortal, life-threatening, murderous, homicidal, deadly, case-fatality, destructive, devastating, fateful, dangerous, poisonous.
  • Proper noun, singular
    deadly, letal.

Antonyms for Lethal:

• adj.

  • deadly
    healthy, helpful, wholesome, kind, harmless, beneficial, life-giving.
  • Other antonyms:
    healthful, useful, tonic, remedial, restorative, advantageous, nonpoisonous, salutary, curative, alleviative, nonlethal, nontoxic, corrective, salubrious.

Homophones for Lethal:

• ldl, lately, laid low, loudly, little, little owl, luteal, loathly, lewdly, ladle.