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1. Suggestive of or related to a viper.
2. Venomous; malicious.

vi′per·ous·ly adv.


(ˈvaɪpərəs) or


1. (Zoology) Also: viperine of, relating to, or resembling a viper
2. malicious
ˈviperously, ˈviperishly adv


(ˈvaɪ pər əs)

1. resembling a viper.
2. pertaining to or characteristic of vipers.
3. venomous.
vi′per•ous•ly, adv.
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References in periodicals archive ?
Is suicide a response to systemic repressive regulated and controlled systems that are viperous and vicious?
Civil dissension is a viperous worm That gnaws the bowels of the commonwealth.
The pristine refinement of Medusa's skin, her elaborate, viperous coiffure and come-hither haughtier are abstractions; Medusa is a conceptual figure, the embodiment of dangerous femininity, of seductive death.
The "myth" disseminated by the Castle drew on nineteenth-century Czech nationalist narratives, and posited a story familiar to scholars: Czechs were an innately democratic, tolerant, peace-loving, enlightened people living in a viperous Central European neighbourhood otherwise lacking in these virtues.