"Blank minds" can be a frustrating feeling. Sometimes, it seems like no matter how hard we try, our minds remain empty and unresponsive. However, there are various synonyms that could be used to describe this feeling. One might say that their mind is "empty," "foggy," or "uninspired." Alternatively, they may feel like their mind is "vacant," "unengaged," or "idle." Sometimes, we might describe this feeling as "blocked" or "stuck," or even feeling "unfocused" or "distracted." Whatever word you choose, the common theme is feeling disconnected from our thoughts and ideas - a feeling that can be both frustrating and demotivating.