Definition of unobtrusive adjective from the Oxford Advanced American Dictionary

 

unobtrusive

 adjective
adjective
NAmE//ˌʌnəbˈtrusɪv//
 
(formal)(often approving)
 
jump to other results
not attracting unnecessary attention The service at the hotel is efficient and unobtrusive. opposite obtrusive
unobtrusively
 
jump to other results
 
adverb Daria slipped unobtrusively in through the back door.
See the Oxford Advanced Learner's Dictionary entry: unobtrusive