1. Resembling a drill

See also: sharp

• instillator
• instilling
• instillment
• instilment
• instinct
• instinctive
• instinctive reflex
• instinctively
• instinctual
• instinctually
• institute
• instituter
• institution
• institutional
• institutionalise
• institutionalised
• institutionalize
• institutionalized
• institutionally
• institutor
• instroke
• instruct
• instruction
• instruction book
• instruction execution