infestuous

Adjective

infestuous (comparative more infestuous, superlative most infestuous)

1. Mischievous; harmful; dangerous.
   • The Store-houses burnt, the siege harde plyed, the waste of victuals great, the husbanding of them none at all, there fell such an infestuous unsaciable famine amongst them, that if all the stones of Jerusalem had been bread, and they should have tyred on them, yet woulde they have beene behind...1593, Thomas Nashe, Christs Teares over Jerusalem, London: Andrewe Wise, Ronald B. McKerrow (editor), The Works of Thomas Nashe, London: A.H. Bullen, 1904, Volume 2, p. 69
   • Perseus is said to have been employed by Pallas for the destroying of Medusa, who was very infestuous to the Western Parts of the World, and especially about the utmost Coasts of Hiberia.1691, Arthur Gorges (translator), The Wisdom of the Ancients by Francis Bacon (1609), London, “Perseus, or War,” p. 24