rogue
adjective
1. (of an animal, especially an elephant) Vicious and solitary.
2. (by extension) Large, destructive and unpredictable.
3. (by extension) Deceitful, unprincipled.
4. Mischievous, unpredictable.
noun
1. a deceitful and unreliable scoundrel
Similar word(s): knave, rapscallion, rascal, scalawag, scallywag, varlet
verb
1. (horticulture) To cull; to destroy plants not meeting a required standard. Especially when saving seed, rogue or unwanted plants are removed before pollination.
2. (obsolete) To give the name or designation of rogue to; to decry.
3. (obsolete) To wander; to play the vagabond; to play knavish tricks.