Purely

Adverb

 * 1)  Chastely; innocently.
 * 2) Without adulterants.
 * 3)  Wholly.
 * 4)  Solely; exclusively; merely.
 * I am interested for purely artistic reasons.

Thesaurus
a outrance, absolutely, after a fashion, all, all in all, all out, alone, altogether, appreciably, at any rate, at best, at least, at most, at the least, at the most, at the outside, at worst, barely, beyond all bounds, beyond compare, beyond comparison, beyond measure, blamelessly, clean, cleanly, comparatively, completely, conscientiously, dead, decently, detectably, downright, entirely, erectly, essentially, exactly, exclusively, extremely, fairly, fastidiously, faultlessly, flat out, flawlessly, fully, fundamentally, high-mindedly, honestly, honorably, ideally, immaculately, immeasurably, impeccably, in, in a manner, in a way, in part, in some measure, in the extreme, incalculably, incompletely, indefinitely, infallibly, infinitely, integrally, irreducibly, irreproachably, just, just right, leastwise, merely, meticulously, mildly, moderately, modestly, morally, most, nobly, not comprehensively, not exhaustively, only, part, partially, partly, perfectly, plainly, pro tanto, punctiliously, radically, relatively, reputably, righteously, scrupulously, simply, simply and solely, singly, so far, solely, somewhat, spotlessly, stainlessly, thoroughly, thus far, to a degree, to some degree, tolerably, totally, unanalyzably, unconditionally, undividedly, unequivocally, unimpeachably, unspottedly, uprightly, upstandingly, utterly, virtuously, visibly, wholly, with a vengeance, worthily