adjective

• Of or relating to the belief that human actions are motivated only or primarily by base desires or selfishness.
• Skeptical of the integrity, sincerity, or motives of others.
• Bitterly or jadedly distrustful or contemptuous; mocking.
• Showing contempt for accepted moral standards by one's actions.
• (medicine, rare) Like the actions of a snarling dog, especially in reference to facial nerve paralysis.
• Of or relating to the Cynics, a sect of Ancient Greek philosophers who believed virtue to be the only good and self-control to be the only means of achieving virtue.