Meracious is a word that means deceitful or false. It's a term that is often used to describe people who mislead others or lie to them. Some synonyms for meracious include dishonest, deceptive, untruthful, fraudulent, insincere, and treacherous. These words all suggest someone who cannot be trusted and who intentionally deceives others. Other synonyms for meracious include duplicitous, disingenuous, and manipulative. A person who is meracious is not someone you would want to associate with or rely on. It's important to be aware of those who are meracious, so you can avoid falling into their traps, and be cautious about the information they provide.