The word "false" is commonly used to describe something that is not true or genuine. However, there are several other synonyms that can be used in place of this word such as "untrue", "fake", "fabricated", "deceptive", "fraudulent", "fictitious", "counterfeit", "misleading", "inauthentic", and "pretend". Each of these synonyms appropriately describes something that is not real or not accurate. It is important to use synonyms to avoid repetition in writing and to accurately convey the intended meaning.