Synonyms to imaginably

perchance, accidentally, as it chanced, by a fluke, by accident, by chance, by good fortune, by hazard, casually, conceivably, feasibly, for some reason, fortuitously, haply, in some way, incidentally, it may be, maybe, perhaps, possibly, somehow, somehow or other, unpredictably, blind guess, bold conjecture, conjecture, guess, hunch, rough guess, shot, speculation, stab, suppose, supposition, surmise, unverified supposition, wild guess