A pseudologist refers to someone who is known for lying and making false claims. This deceptive behavior can cause problems for both the liar and the people around them. Synonyms for the word include fabricator, prevaricator, fibster, dissembler, and deceiver, all of which share the common thread of dishonesty. Some more colloquial terms for someone who lies frequently are storyteller, fibber, or exaggerator. It's important to note that a pseudologist is not the same as someone who simply makes mistakes or gets things wrong. Rather, it's someone who deliberately deceives others by creating false narratives or presenting untruthful information.