The Collaborative International Dictionary of English v.0.48:
Artlessly \Art"less*ly\, adv. In an artless manner; without art, skill, or guile; unaffectedly. --Pope. [1913 Webster]WordNet (r) 3.0 (2006):
artlessly adv 1: in a crude and unskilled manner; "an inexpertly constructed lean-to" [syn: artlessly, crudely, inexpertly] 2: in an ingenuous manner; "she answered the judge's questions artlessly" [syn: artlessly, ingenuously]