Synonyms of unpretentiously

2 Syllables
freely, simply
3 Syllables
casually, readily, chastely, candidly, bashfully, openly, soberly, commonly, artlessly, modestly, easily, normally, usually
4 Syllables
uniformly, genuinely, demurely, informally, spontaneously, consistently, habitually, typically, naturally, innocently, guilelessly, generally
5 Syllables
customarily, ordinarily, impulsively, intelligibly, instinctively, matter-of-factly, unaffectedly
7 Syllables
characteristically