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based primarily on surmise rather than adequate evidence; "theories about the extinction of dinosaurs are still highly conjectural"; "the supposed reason for his absence"; "suppositious reconstructions of dead languages"; "hypothetical situation"
marked by good intentions though often producing unfortunate results; "a well-intentioned but clumsy waiter"; "a well-meaning but tactless fellow"; "the son's well-meaning efforts threw a singular chill upon the father's admirers"- S.W.Maughm; "blunt but well-meant criticism"
open to doubt or suspicion; "the candidate's doubtful past"; "he has a dubious record indeed"; "what one found uncertain the other found dubious or downright false"; "it was more than dubitable whether the friend was as influential as she thought"- Karen Horney