Causing repugnance; unpleasant to the feelings or senses; displeasing.
Something or someone displeasing; anything that is disagreeable.
Malignant; spiteful; hateful.
Full of venom.
Noxious; evil.
Powerful
Producing venom (a toxin usually injected into an enemy or prey by biting or stinging) in glands or accumulating venom from food.
Toxic; poisonous.