lighten up v make more cheerful v become more cheerful v make lighter or brighter v become lighter Synonym(s) lighten buoy up brighten Antonym(s) weigh_down darken
News & Articles lighten up Dumb And Dumber Best Explains Chad Johnson's, Judge McHugh's Behavior In Courtroom 'Fanny Tap' In the immortal words of Sergeant Hulka from Stripes fame, "Lighten up, Francis." June 11, 2013 - Forbes