The word "endlesslies" can have several synonyms based on the context of the usage. In terms of continuous or uninterrupted behavior, the word "unceasingly" would be appropriate. When referring to something that lasts indefinitely, words such as "eternal" or "perpetual" could be used. In a negative context such as a never-ending lie, synonyms such as "ceaseless," "infinite," or "boundless" would apply. For a more positive context, the words "limitless," "unlimited," or "enduring" can be used. The synonyms for "endlesslies" should be chosen according to the situation and the tone of the content.