mala fides

[ mah-lah fee-des; English mey-luh fahy-deez ]
/ ˈmɑ lɑ ˈfi dɛs; English ˈmeɪ lə ˈfaɪ diz /

noun Latin.

bad faith; intent to cheat or deceive.Compare bona fides(def 1).
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019