The word "impressionabilities" is quite uncommon and not frequently used in everyday language. Synonyms for this word could include "suggestibility," "receptiveness," "sensitivity," or "susceptibility." These words all convey the idea of being easily influenced or affected by external factors, whether they are positive or negative. Another option could be the word "impressionable," which directly relates to the ability to be easily impressed or swayed. It's important to consider the connotations of each synonym and choose the one that best fits the context and desired tone of your writing or conversation.