Sketchier is a word that describes something that is suspicious or uncertain. There are several synonyms that can be used instead of "sketchier" to convey a similar meaning. These include shadier, dodgier, fishier, and more dubious. Each of these words implies a sense of uncertainty or risk, suggesting that a situation may not be entirely trustworthy or above board. Other synonyms for sketchier could include more questionable, more risky, more doubtful, more risky, and more uncertain, depending on the specific context and tone of the message being conveyed. Regardless of the word used, the goal is to create a sense of caution and suspicion around the subject at hand.