Inexpressiveness is defined as the inability to convey emotions or feelings effectively. There are several synonyms for this word, including reticence, inscrutability, stoicism, impassiveness, and blankness. Reticence refers to the reluctance to speak or communicate. Inscrutability implies an enigmatic or mysterious quality that is difficult to comprehend. Stoicism suggests an unemotional response to challenging situations. Impassiveness is the lack of emotional response or reaction. Blankness refers to an absence of emotion or expression. These synonyms offer different nuances to the concept of inexpressiveness, depending on the context and the speaker's intention. Choosing the right synonym can help convey the desired meaning accurately.