adj
Meaning 1
of or pertaining to a viper
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: viperish
Antonyms: none provided
Standard Lemma guide
viperous
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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No pronunciation record was provided for this word.
adj
Meaning 2
venomous, malicious or treacherous
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: reptilian, reptitious, viperish, abandoned, arrant, bad, bad apple, bad seed, baleful, scurrilous, baneful, base, black-hearted, dark, deleterious, demonic, depraved, despicable, detrimental, devilish, diabolical, evil, evil-minded, facinorous, flagitious, harmful, heinous, ill-intentioned, ill-natured, immoral, incorrigible, iniquitous, iniquous, injurious, knavish, malefic, maleficent, malevolent, malicious, malign, malignant, naughty, nefarious, niddering, nidering, niding, nithing, no-good, peccaminous, pernicious, reprehensible, reprobate, satanic, scathful, sinful, sinister, sordid, sullen, ungodly, unholy, vicious, vile, villainous, wicked, wrong, booky, dastardly, disleal, disloyal, double-crossing, double-dealing, double-faced, double-hearted, doublehearted, faithless, false, falseheart, false-hearted, guiled, guileful, hollow-hearted, illoyal, infidelitous, insidious, Judaslike, Judasly, nonfaithful, perfidious, proditorious, proditory, Punic, ratlike, recreant, renegade, swike, traitorish, traitorlike, traitorly, traitorous, traitorsome, treacherous, treachersome, trothless, unfaithful, unleal, unloyal, unsteadfast, untrue, viperous
Antonyms: none provided
History
Etymology
Etymology tree English viper Latin -ōsus Old French -usbor. Middle English -ous English -ous English viperous From viper + -ous.