One who inquires
One who inquires or makes an inquisition, especially a questioner who is excessively rigorous or harsh.
One, especially a detective, who investigates.
Find another word for inquirer. In this page you can discover 11 synonyms, antonyms, idiomatic expressions, and related words for inquirer, like: researcher, questioner, querier, quester, ask, investigate, enquirer, asker, inquisitor, investigator and prober.