There are numerous synonyms for the word "semismart" which can be used to describe someone who possesses some degree of intelligence or cleverness. Some alternatives include "partially intelligent", "moderately clever" or "fairly astute". Another option could be "semi-intellectual", which suggests a person with a moderate level of intellectual prowess. Additionally, one might consider using "half-smart", "marginally bright" or "middling sharp" to convey a similar meaning. These synonyms help to convey the notion that an individual possesses a certain degree of intelligence without being exceptionally smart.