Definitions of repellent:

• noun:   the power to repel

  Example: "She knew many repellents to his advances"

• noun:   a chemical substance that repels animals
• noun:   a compound with which fabrics are treated to repel water
• adjective:   incapable of absorbing or mixing with

  Example: "A water-repellent fabric"

• adjective:   serving or tending to repel

  Example: "I find his obsequiousness repellent"

• adjective:   highly offensive; arousing aversion or disgust

  Example: "The idea of eating meat is repellent to me"