WordNet sense 1 (doubtful or suspect):

alleged, so-called

WordNet sense 2 (subject to question):

questionable

WordNet sense 3 (caused by law or conscience to follow a certain course):

obligated

WordNet sense 4 (not likely to be true or to occur or to have occurred):

improbable, unlikely

WordNet sense 5 (intentional or planned):

intended

WordNet sense 6 (considered likely or probable to happen or arrive):

expected

WordNet sense 7 (based primarily on surmise rather than adequate evidence):

conjectural, hypothetical, divinatory, hypothetic, suppositional, suppositious, supposititious

WordNet sense 8 (concerned primarily with theories or hypotheses rather than practical considerations):

theoretic, theoretical

WordNet sense 9 (commonly put forth or accepted as true on inconclusive grounds):

purported, putative, reputed

WordNet sense 10 (recognized or made known or admitted):

acknowledged