Inner

Middle English, from Old English innera, comparative of inne ("within"), from Proto-Indo-European *in.

Full definition of inner

Being or occurring (farther) inside, situated farther in, located (situated) or happening on the inside of something, situated within or farther within contained within something.
inner door; inner room; inner sanctum; inner surface

2013, Stephen P. Lownie, David M. Pelz, Stents to Prevent Stroke, As we age, the major arteries of our bodies frequently become thickened with plaque, a fatty material with an oatmeal-like consistency that builds up along the inner lining of blood vessels.

Close to the centre, located near or closer to center.
the inner suburbs
Inside or closer to the inside of the body.
inner ear
Of mind or spirit, relating to the mind or spirit, to spiritual or mental processes, mental, spiritual, relating to somebody's private feelings or happening in somebody's mind, existing as an often repressed part of one's psychological makeup.
inner confidence; inner strength; inner life; inner child; inner artist; inner peace; inner light

2012, May 20, Nathan Rabin, TV: Review: THE SIMPSONS (CLASSIC): â€œMarge Gets A Jobâ€ (season 4, episode 7; originally aired 11/05/1992), Bart spies an opportunity to make a quick buck so he channels his inner carny and posits his sinking house as a natural wonder of the world and its inhabitants as freaks, barking to dazzled spectators, â€œBehold the horrors of the Slanty Shanty! See the twisted creatures that dwell within! Meet Cue-Ball, the man with no hair!â€

Not obvious, private, not expressed, not apparent, hidden, less apparent, deeper, obscure, ; innermost or essential, needing to be examined closely or thought about in order to be seen or understood.
inner meaning; inner resources; inner logic
Privileged, more or most privileged, more or most influential, intimate, exclusive, more important, more intimate, private, secret, confined to an exclusive group, exclusive to a center; especially a center of influence being near a center especially of influence.
inner circle; inner council

1922, Ben Travers, A Cuckoo in the Nest Chapter 2, Mother...considered that the exclusiveness of Peter's circle was due not to its distinction, but to the fact that it was an inner Babylon of prodigality and whoredom, from which every Kensingtonian held aloof, except on the conventional tip-and-run excursions in pursuit of shopping, tea and theatres.

(plural inners)