Synonyms for Central:

adj.

central (adjective)
midway, innermost, main, interior, focal, median, nuclear, middle, halfway, midmost, pivotal, core.
critical (adjective)
crucial.
focal (adjective)
convergent, key, focal, core, nuclear, asymptotic, essential.
important (adjective)
crucial, serious, meaningful, vital, major, significant.
intervening (adjective)
mid.
intrinsic (adjective)
inwoven, inherent, integral, inseparable, deep down, implicit, component, elemental, ingrained, inmost, built-in, intrinsic, unalienable, fundamental.
inward (adjective)
inward, heart, inner, visceral, subjective, internal, inland, core, intrinsic, interior, intestinal.
middle (adjective)
halfway, half, middle, median, medium, geocentric, intermediate, core, mediocre, middle-of-the-road, average, medial, axial, mean, middling, half-and-half, centralized, midway, midmost, Bisecting, mezzo, nuclear, pivotal, equidistant, mid.
near (adjective)
convenient.

adv

in the middle (adverb)
centrally.

n.

edge, astride, centrally, left, left hand. established, structured, governing, regulatory, self-regulatory, tiered, informal, flat, structural. artifact (noun)
exchange, telephone exchange.
central (noun)
centrical, centered, median, halfway, inner, center, exchange, of import, important, middle, amidship, fundamental, bicentric, focal, middlemost, centric, bifocal, primal, midmost, nuclear, key, telephone exchange, midway, cardinal, medial.
fundamental (noun)
primary, basic, necessary, prime, principal.
middle (noun)
median.

Other synonyms:

inmost, orthodox, utopian, nonconformist, deterministic, regulatory, metaphysical, theoretical, left hand, abstract, astride, self-regulatory, conceptual, structured, popular. governing, established, tiered, structural. inside. informal. flat. essential
basic.
fundamental
primary.
in the middle
centrally.
mid
center.

Usage examples for central

  1. I haven't been in Central Park for ten years, my child." – The Tracer of Lost Persons by Robert W. Chambers
  2. The people wanted a single central government, and they were willing to go back to the old idea of Empire just to get such a government. – The Unnecessary Man by Gordon Randall Garrett
  3. Thirty former central members have become part of a newly formed church three miles away. – The Making of a Country Parish by Harlow S. (Harlow Spencer) Mills