perfidiously

Adverb

In a deceitful or untrustworthy manner.

ریشه

Derived from the adjective 'perfidious' with the suffix '-ly' to form an adverb.

مثال

• He perfidiously manipulated the situation to his advantage.
• The company perfidiously misled its customers with false advertising.
• She perfidiously plotted against her colleagues to secure a promotion.