unobtrusive
I
adjective
clandestine, covert, humble, meek, modest, natural, passive, quiet, reserved, restrained, reticent, retiring, self-effacing, shrinking, simple, subdued, surreptitious, unassuming, unconspicuous, undercover, underground, unimposing, unostentatious, unseen
II
index
covert, furtive, inconspicuous, unpretentious
Burton's Legal Thesaurus.
William C. Burton.
2006