/ ɪˈnɪmɪkl; NAmE / adjective ( formal )
1.
inimical to sth harmful to sth; not helping sth :
These policies are inimical to the interests of society.
2.
unfriendly :
an inimical stare
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WORD ORIGIN
early 16th cent.: from late Latin inimicalis , from Latin inimicus , from in- not + amicus friend.