könyörtelen

Harsh, merciless, and not allowing for relief or leniency.

Showing no mercy, pity, or compassion, especially in the way someone treats another person.

Describing conditions, forces, or systems that are extremely harsh, severe, and unrelenting, giving no relief or ease.

Having no remorse, pity, or compassion; showing no regret for harm done.

Continuing in a harsh or intense way without stopping, slowing down, or becoming less severe.

Extremely harsh, severe, and unrelenting, especially when describing conditions, forces, or processes rather than people.

Completely lacking pity or mercy toward people who are suffering, and willing to let harm continue without compassion.