inhumanly

adjective

1. lacking qualities of sympathy, pity, warmth, compassion, or the like; cruel; brutal: an inhuman master.
2. not suited for human beings.
3. not human.

adjective

1. Also: inhumane (ˌɪnhjuːˈmeɪn) lacking humane feelings, such as sympathy, understanding, etc; cruel; brutal
2. not human

adj.

mid-15c., “cruel,” from Latin inhumanus “inhuman, savage, cruel, rude, barbarous,” from in- “not, opposite of” (see in- (1)) + humanus “human” (see human). Spelled inhumane till 18c. (see humane).