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

Once investigators began digging into Evonitz’s past, Chamberlain’s abduction proved to be only part of the story. — Stephanie Nolasco, FOXNews.com, 17 Oct. 2026

The shooter’s parents were cooperative and told investigators their son had attended Silver Rail Elementary School during their interview, the source said. — Alaa Elassar, CNN Money, 17 Oct. 2026

Some of their fellow investigators go so far as to argue that deadbots should only be available with psychological supervision, to ensure that best practices are in place, and to minimize the risk of harm. — Lissa Soep, Vox, 17 Oct. 2026

That inspection is now under a full review as investigators examine evidence, equipment and relevant documents, according to the agency. — Christopher Harris, CBS News, 16 Oct. 2026

Phrases Containing investigator

• private investigator