manslaughterer (noun) murderer: person who kills
Sinonime: arduous, backbreaking,
brutal, chastening, crushing,
demanding,
excruciating, exhausting, fatiguing,
fierce, grinding,
hairy*,
hard, harsh, heavy*, laborious, punishing, racking, severe,
stiff, strenuous, tiring, torturous, trying
Antonime: easy, facile