CONJECTURER
Scrabble letter values: C3O1N1J8E1C3T1U1R1E1R1 = 22
Definition
CONJECTURER is the comparative of CONJECTURE.
verb CONJECTURE: to believe especially on uncertain or tentative grounds.
Synonyms of CONJECTURE: speculate, theorize, theorise, hypothesize, hypothesise, hypothecate, suppose