UNWORLDLY
unsophisticated, unworldly
(adjective) not wise in the ways of the world; “either too unsophisticated or too honest to promise more than he could deliver”; “this helplessly unworldly woman”- Kate O’Brien
unworldly
(adjective) not concerned with the temporal world or swayed by mundane considerations; “was unworldly and did not greatly miss worldly rewards”- Sheldon Cheney
Source: WordNet® 3.1
Etymology
Adjective
unworldly (comparative unworldlier, superlative unworldliest)
Of or relating to the spiritual as opposed to the material.
Unconcerned with secular matters.
Lacking sophistication.
Source: Wiktionary
Un*world"ly, a.
Definition: Not worldly; spiritual; holy. Hawthorne.
– Un*world"li*ness, n.
Source: Webster’s Unabridged Dictionary 1913 Edition