inimical
ih-NIM-ih-kuladjMeaning harmful or unfriendly, like an enemy
Memory hook IN-IMIC: NOT AMICable, NOT a friend. The snowman who wandered into the desert finds the blazing sun no friend at all; the heat is inimical to him.
Cold, salty air is inimical to most tropical plants.
In context The desert’s scorching days and freezing nights are inimical to most living things, yet the tough little cactus thrives there.
Similar harmful, hostile, unfriendly, adverse
Opposite friendly, favorable, beneficial
From Late Latin inimicalis, from Latin inimicus (enemy): in- (not) + amicus (friend).