The term 'less certain' can be described by the crossword solutions of 'dicier' (6 letters), 'leerier' (7 letters), 'iffier' (6 letters), 'riskier' (7 letters), and 'notsosure' (9 letters). Dicier means more uncertain or unpredictable, leerier implies a suspicious or untrustworthy look, iffier suggests something that is unreliable or questionable, riskier implies a greater chance of danger or failure, and notsosure indicates a lack of certainty. All of these words describe a situation that is less certain than it was before.