A scoundrel, rascal or unprincipled, deceitful, and unreliable person.
A vagrant.
A plant that shows some undesirable variation.
A character class focusing on stealthy conduct.
An aggressive animal separate from the herd, especially an elephant.
Deceitful software pretending to be anti-spyware, but in fact being malicious software itself.
A mischievous scamp.
Mischievous, unpredictable.
Large, destructive and unpredictable.
Deceitful, unprincipled.
Vicious and solitary.
To cull; to destroy plants not meeting a required standard, especially when saving seed, rogue or unwanted plants are removed before pollination.
An extremely depraved person, or one capable or guilty of great crimes.
A vile, wicked person.
Any opponent player, especially a hypothetical player for example and didactic purposes. Compare: hero (“the current player”).
In fiction, a character who has the role of being bad, especially antagonizing the hero.
A deliberate scoundrel.