cynical

Etymology

Originated 1580–90 from cynic + -al.

adj

1. Of or relating to the belief that human actions are motivated only or primarily by base desires or selfishness.
   I hope it is no very cynical asperity not to confess obligations where no benefit has been received. 1755, Samuel Johnson, To the Earl of Chesterfield
2. Skeptical of the integrity, sincerity, or motives of others.
3. Bitterly or jadedly distrustful or contemptuous; mocking.
4. Showing contempt for accepted moral standards by one's actions.
5. (medicine, rare) Like the actions of a snarling dog, especially in reference to facial nerve paralysis.
   Towards noon, he experienced convulsive movements; the extremities became stiff, the pulse extremely small, and he died during an attack of cynical spasm. 1818, Matthieu Joseph Bonaventure Orfila, A Treatise on Mineral, Vegetable, and Animal Poisons, Considered as to their Relations with Physiology, Pathology, and Medical Jurisprudence
   On the contrary, in woman, the cynical spasm, though felt with as much, or even more violence than the other sex, is not followed with the same deleterious effects, and may be repeated much oftener without any unfavorable consequences. 1857, New Orleans Medical News and Hospital Gazette - Volume 3, page 278
   Demetrius Attalicus studied the symptomatologies due to strictura cerebri, characterized by a cynical spasm of the facial nerve. 1986, Giuseppe Roccatagliata, A History of Ancient Psychiatry, page 125
   Something of the same sort happened at Hensberg, Germany, where the nuns were afflicted and committed the sin they called “the silent sin.” In their ecstasies, their convulsions were very violent and interspersed with “cynical movements of the pelvis.” 2009, Hilary Evans, Robert E. Bartholomew, Outbreak!: The Encyclopedia of Extraordinary Social Behavior