Webster's Revised Unabridged Dictionary · 1913

Inimical

Inimical (?; 277) , adjective

[Latin inimicalis, from inimicus unfriendly, hostile; pref. in- not + amicus friendly. See Amity.]

1.
Having the disposition or temper of an enemy; unfriendly; unfavorable; -- chiefly applied to private, as hostile is to public, enmity.
2.
Opposed in tendency, influence, or effects; antagonistic; inconsistent; incompatible; adverse; repugnant.
We are at war with a system, which, by its essence, is inimical to all other governments. — Burke