Trumpedup is an adjective that refers to something that is false, exaggerated, and fabricated. The word is often used to describe information, stories, or claims that are made without evidence or proof, done with the intention of deceiving or misleading others. The antonyms for trumpedup would be genuine, authentic, truthful, sincere, and legitimate. These words describe the opposite of something made up or fictitious. Genuine suggests that something is true and honest, while authentic means that it is original and credible. Legitimate, on the other hand, pertains to something that is lawful, valid, and legal. Sincere implies that something is genuine, honest, and heartfelt.