<p><strong>Adjective</strong></p><ul><li><p>Given to deceiving: A deceitful person cannot keep friends for long.</p></li><li><p>Synonyms: wily, tricky, designing, hollow, false, disingenuous, insincere.</p></li><li><p>Antonyms: honest.</p></li><li><p>Intended to deceive; misleading; fraudulent: a deceitful action.</p></li><li><p>Synonyms: fallacious, illusory.</p></li><li><p>Antonyms: genuine.</p></li></ul>