firsthand . firsthand {adj.} Fresh; genuine; from the original source. John says he got the information firsthand from the president himself. Categories: add yours {adj.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 To section: F Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Discuss