S: (n) compound, chemical compound ((chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight)
S: (n) repellent, repellant (the power to repel) "she knew many repellents to his advances"
Adjective
S: (adj) rebarbative, repellent, repellant (serving or tending to repel) "he became rebarbative and prickly and spiteful"; "I find his obsequiousness repellent"