1. Betrayal of a trust
   - perfidy, treachery

Derived forms: perfidiousnesses

See also: perfidious

Type of: disloyalty

Encyclopedia: Perfidiousness

• intellect
• intellection
• intellective
• intellectual
• intellectual nourishment
• intellectual property
• intellectualisation
• intellectualise
• intellectualism
• intellectualist
• intellectualization
• intellectualize
• intellectually
• intelligence
• intelligence activity
• intelligence agency
• intelligence agent
• intelligence analyst
• intelligence cell
• Intelligence Community
• intelligence information
• intelligence officer
• intelligence operation
• intelligence quotient
• intelligence service