it appears that

STRONGEST

allegedly ostensibly possibly probably supposedly

WEAK

as if as though at a glance at first sight in all likelihood intuitively it seems that most likely on the face of it outwardly plausibly professedly reasonably reputably speciously superficially tangibly to all appearances

STRONGEST

improbably unlikely

WEAK

dubiously equivocally questionably uncertain

WEAK

allegedly as if as though at a glance at first sight evidently externally in all likelihood intuitively it seems that most likely on the face of it ostensibly outwardly plausibly possibly probably professedly reasonably reputably seemingly speciously superficially supposedly tangibly to all appearances