A skeptical, scornful or pessimistic comment or act.
A distrustful attitude.
An emotion of jaded negativity, or a general distrust of the integrity or professed motives of other people. Cynicism can manifest itself by frustration, disillusionment and distrust in regard to organizations, authorities and other aspects of society, often due to previous bad experience. Cynics often view others as motivated solely by disguised self-interest.
vigilance or the condition of being alert
precautionary forethought to avoid harm or risk