Synonyms of investigator

investigator

noun

in-ˈve-stə-ˌgā-tər 

1

as in researcher

one who observes or studies by close examination and systematic inquiry

investigators who discovered new evidence that the universe was much older than had been previously estimated

Synonyms & Similar Words

• researcher
• experimenter
• observer
• examiner
• monitor
• inspector
• fact finder
• empiricist
• empiric
• field-worker

2

as in detective

a person not on the police force who investigates criminal or illicit activity or searches for missing persons

the investigator in charge of the case was touted as an expert at tracing stolen art

Synonyms & Similar Words

• detective
• operative
• sleuth
• private investigator
• dick
• gumshoe
• private detective
• private eye
• sleuthhound
• shamus
• sherlock
• tracker
• tracer
• hawkshaw
• Federal
• tail
• plainclothesman
• narc
• fed
• shadow
• G-man

Example Sentences

Recent Examples of investigator

The money was supposed to pay for expenses including roofing, collections, security, landscaping and general renovations, according to investigators. — Chelsea Jones, CBS News, 28 Aug. 2026

Federal safety investigators urged automakers to give emergency responders better guides on how to fight lithium-ion battery fires. — Todd C. Frankel, Washington Post, 28 Aug. 2026

In December 2025, he was indicted by a federal grand jury on charges of cyberstalking Mica and making false statements to federal investigators. — Britt Hayes, Entertainment Weekly, 28 Aug. 2026

There, investigators found a man suffering from gunshot wounds, VanBibber said. — Caroline Zimmerman, Kansas City Star, 28 Aug. 2026

Phrases Containing investigator

• private investigator