indigenous, innate, natal, natural, original.
_Native_ denotes that which belongs to one by birth; _natal_ that which pertains to the event of birth; _natural_ denotes that which rests upon inherent qualities of character or being. We speak of one's _native_ country, or of his _natal_ day; of _natural_ ability, _native_ genius. Compare INHERENT; PRIMEVAL; RADICAL.
acquired, alien, artificial, assumed, foreign, unnatural.
_Marine_ (L. _mare_, sea) signifies belonging to the ocean, _maritime_, a secondary derivative from the same root, bordering on or connected with the _ocean_; as, _marine_ products; _marine_ animals; _maritime_ nations; _maritime_ laws. _Nautical_ (Gr. _nautes_, a sailor) denotes primarily anything connected with sailors, and hence with ships or navigation; _naval_ (L. _navis_, Gr. _naus_, a ship) refers to the armed force of a nation on the sea, and, by extension, to similar forces on lakes and rivers; as, a _naval_ force; a _nautical_ almanac. _Ocean_, used adjectively, is applied to that which belongs to or is part of the _ocean_; _oceanic_ may be used in the same sense, but is especially applied to that which borders on (or upon) or is connected with, or which is similar to or suggestive of an _ocean_; we speak of _ocean_ currents, _oceanic_ islands, or, perhaps, of an _oceanic_ intellect.
clean, dapper, nice, prim, tidy, cleanly, natty, orderly, spruce, trim.
That which is _clean_ is simply free from soil or defilement of any kind. Things are _orderly_ when in due relation to other things; a room or desk is _orderly_ when every article is in place; a person is _orderly_ who habitually keeps things so. _Tidy_ denotes that which conforms to propriety in general; an unlaced shoe may be perfectly _clean_, but is not _tidy_. _Neat_ refers to that which is _clean_ and _tidy_ with nothing superfluous, conspicuous, or showy, as when we speak of plain but _neat_ attire; the same idea of freedom from the superfluous appears in the phrases "a _neat_ speech," "a _neat_ turn," "a _neat_ reply," etc. A _clean_ cut has no ragged edges; a _neat_ stroke just does what is intended. _Nice_ is stronger than _neat_, implying value and beauty; a _cheap_, coarse dress may be perfectly _neat_, but would not be termed _nice_. _Spruce_ is applied to the show and affectation of neatness with a touch of smartness, and is always a term of mild contempt; as, a _spruce_ serving man. _Trim_ denotes a certain shapely and elegant firmness, often with suppleness and grace; as, a _trim_ suit; a _trim_ figure. _Prim_ applies to a precise, formal, affected nicety. _Dapper_ is _spruce_ with the suggestion of smallness and slightness; _natty_, a diminutive of _neat_, suggests minute elegance, with a tendency toward the exquisite; as, a _dapper_ little fellow in a _natty_ business suit.