inhumanly Definition

1. Without human feeling; cruel and unfeeling; brutal.

Thesaurus: savage, brutal, fiendish, barbaric, cruel, cold-blooded, diabolical, merciless, pitiless, vicious, inhumane; Antonym: kind.
2. Said of eg an intelligence or form: not human.

Inhuman and inhumane overlap in meaning to such an extent that it is impossible to sustain a distinction in their use. In general, inhuman refers to the characteristic of a person or action, whereas inhumane considers the same characteristic rather more in relation to the effect or consequences of the action on the sufferer.