Straightforward, a.
Proceeding in a straight course or manner; not deviating; honest; frank. -- adv.
In a straightforward manner. -- Straight`for"ward*ly, adv. -- Straight`for"ward*ness, n.
Shades of meaning
Fernald has no entry of its own for straightforward; he lists it under candid, clear, honest.
He lists it without comment; the entries above explain its neighbors.
Synonyms
candidclearhonestaboveboardapparentartlessdiaphanousdistinctequitableevidentexplicitfairfaithfulfrankgenuinegoodguilelesshonorableimpartialingenuousinnocentintelligiblejustlimpidlucidmanifestnaiveobviousopenpellucidperspicuousplainsimplesinceretranslucenttransparenttruetrustworthytrustytruthfulunadornedunambiguousunbiasedunequivocalunmistakableunprejudicedunreservedunsophisticatedupright
Antonyms
adroitambiguousartfulcloudycraftycunningdeceitfuldesigningdimdiplomaticdishonestdisingenuousdubiousfaithlessfalsefoggyfoxyfraudulenthypocriticalindistinctinsincereintriguingknowinglyingmaneuveringmendaciousmysteriousobscureopaqueperfidioussharpshrewdslysubtletraitoroustreacheroustrickyturbidunfaithfulunintelligibleunscrupulousuntruevaguewily