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

Outstanding cases aren’t a failure on the part of investigators, Mittelman said. — Chris Boyette, CNN Money, 25 July 2026

The pump alarm was still beeping when a coroner’s investigator arrived. — Jeff McDonald, San Diego Union-Tribune, 25 July 2026

Watson had saved the video on his phone and investigators found it after his death. — Noelle Phillips, Denver Post, 25 July 2026

The person knocked on the door and was let in by Chavez, and the video recording device was disconnected about 10 minutes later, investigators have said. — Harriet Ramos, Fort Worth Star-Telegram, 24 July 2026

Phrases Containing investigator

• private investigator