out-of-the-way

1. Being in a remote or secluded location: a quiet, out-of-the-way resort.
2. Being out of the ordinary; unusual: out-of-the-way memorabilia.
3. Improper; offensive: out-of-the-way remarks.

adjective

Far from centers of human population: back, insular, isolated, lonely, lonesome, obscure, outlying, remote, removed, secluded, solitary. Idioms: off the beatenpathtrack. See near/far/distance.

1.  Not obstructing, hindering, or interfering, as in This chair is out of the way now, so you won't trip. This phrase also appears in get out of the (or one's) way, as in Would you please get your coat out of the way? or Get your car out of my way. [Mid-1500s]
2.  Taken care of, disposed of, as in I'm glad we got these details out of the way.
3.  In a remote location, as in This restaurant is a little out of the way. [Mid-1300s]
4.  Unusual, remarkable, as in It was out of the way for him to praise his staff. [Second half of 1500s]
5.  Amiss, in error, improper, as in The security guard checked all the locks and saw nothing out of the way. [Early 1200s] Also see go out of one's way.

The adjective has 3 meanings:

Meaning #1: out of the ordinary

Meaning #2: improper or even offensive

Meaning #3: remote from populous or much-traveled regions
  Synonym: off the beaten track