30 investigation synonyms include examination, inquiry, study, inspection, exploration, consideration, analysis, appraisal, research, and scrutiny. Investigation is a noun, and its antonyms are neglect and ignorance. Here are some additional synonyms for "investigation" with example sentences.
30 other ways to say investigation.
He was accused of lying during the investigation.
Ongoing investigation delayed the final decision.
She conducted a thorough investigation.
The investigation is ongoing with limited information.