more credible

conceivable conclusive creditable dependable honest plausible rational reasonable reliable satisfactory satisfying sincere solid trustworthy valid

aboveboard colorable determinative honest to God imaginable likely possible probable probably seeming sound straight supposable tenable thinkable trusty up front

deceptive dishonest implausible irresponsible unacceptable unbelievable undependable unreasonable unreliable unsound untrustworthy

impossible improbable inconceivable incredible unimaginable unlikely untenable