1. A searcher; an explorer; an investigator

Derived forms: indagators

• instead
• instep
• instigant
• instigate
• instigation
• instigative
• instigator
• instil
• instill
• instillation
• instillator
• instilling
• instillment
• instilment
• instinct
• instinctive
• instinctive reflex
• instinctively
• instinctual
• instinctually
• institute
• instituter
• institution
• institutional
• institutionalise