"Perfidious" is a word in ENGLISH

perfidious ENGLISH
Definition:

Involving, or characterized by, perfidy.

perfidious ENGLISH
Definition:

Guilty of perfidy; violating good faith or vows; false
to trust or confidence reposed; teacherous; faithless; as, a perfidious
friend.

Few words of positivity

Put your ear down close to your soul and listen hard.

Anne Sexton

WORD SUGGESTIONS
Laugh your heart out.

Mum: From now on your going to have free school dinners.Son:But, Mum, I don't want three school dinners, one is more than enough !

treacherous ENGLISH

Like a traitor; involving treachery; violating allegiance or faith pledged; traitorous to the state or sovereign; perfidious in private life; …

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