The word "adumbrates" essentially means to foreshadow or hint at something. It is a rather uncommon word, so finding synonyms that convey a similar meaning can be challenging. Some possible options include "prefigure," "portend," "implicate," "suggestion," "intimate," "imply," "indicate," "betoken," and "presage." Each of these words implies a sense of forecasting or foretelling, whether it be through a direct indication or a subtle hint. While these words may not be commonly used in everyday language, they provide a deeper and more nuanced understanding of the idea of foreshadowing or implying something without stating it outright.