1. Lacking a conscience
   "a conscienceless villain"; "brash, unprincipled, and conscienceless"
   - unconscionable

See also: unconscientious

• inverse cotangent
• inverse function
• inverse secant
• inverse sine
• inverse tangent
• inversely
• inversion
• invert
• invert soap
• invert sugar
• invertase
• invertebrate
• invertebrate foot
• inverted
• inverted comma
• inverted hang
• inverted pleat
• inverter
• invertible
• invest
• investigate
• investigating
• investigation
• investigative
• investigator