Meanings of hardened cynic in English

Forgive a hardened cynic if he fears it will be wasted.

Billions of years to get the fucking hardened cynic you see before you.

It hasn't brought world unity but even a hardened cynic must acknowledge reasons to be hopeful.

And the clothes themselves, when beautifully handmade, never fail to tantalise even the most hardened cynic.

Private M'Sweir is introduced, and led off to the lair of that hardened cynic, the Medical Officer.

In an interview with the Guardian, Saudi crown prince Mohammed bin Salman made statements that would make even the most hardened cynic take note.