The crossword solutions for the term 'It's Not to Be Believed' are HOGWASH (7 letters), LIE (3 letters), MYTH (4 letters), DECOY (5 letters), and MIRAGE (6 letters). HOGWASH is an informal term for nonsense or rubbish, while a LIE is an untruthful statement. A MYTH is a traditional story that is usually based on religious beliefs and is often used to explain natural phenomena. A DECOY is an object used to distract attention from the real target, and a MIRAGE is an optical illusion caused by atmospheric conditions. Together, these terms suggest that something is not to be believed, as it is likely to be false or misleading.