unbeknownst, unknowingly, unwittingly, surreptitiously, secretly, fortuitously, covertly, unwillingly, clandestinely, stealthily, inadvertently, obligingly, innocently, mysteriously, discreetly, doolally, unsuspectingly, sneakily, nosy parker, cunningly, luckily, presumably, subsequently, shamefacedly, indiscreetly, accidently, bizarrely, suspiciously, reluctantly, flagrante delicto, hurriedly, ostensibly, dutifully, inexplicably, fatefully, klaus fuchs, deceitfully, worryingly, supposedly, willingly, unbidden, apparently, unluckily, inconspicuously, furtively, tardily, incognito, coincidentally, latterly, happily, kindly, pally, naively, au fait, funnily enough, inattentively, coincidently, trustingly, deliberately, controversially, firstly, deviously, merrily, harold nicolson, disreputably, fortunately, obediently, maliciously, unthinkingly, apprehensively, defenselessly, whilst, voyeuristically, unhappily, inconveniently, unwisely, distractedly, anyway, illicitly, discretely, blamelessly, chivalrously, unstuck, disinterestedly, secretively, unsympathetically, shorthand typist, sadly, downstairs, unintentionally, ironically, platonically, aghast, narrowboat, kim philby, dumbstruck, studiously

unbeknownst, unknown