Synonyms for Maintained:

adj.

conserved (adjective)
conserved, kept, preserved, reserved, saved.
continued (adjective)
interminable, prolonged, persistent, unceasing, persevering, abiding, protracted, extended, sustained, continued.
retained (adjective)
kept.

n.

maintained (noun)
preserved, repaired, well-kept, kept up, serviceable, serviced, retained.

v.

affirmed (verb)
approved, supported, endorsed, validated, promised, declared, Propounded, warranted, Adjured, asserted, acknowledged, verified, Testified, ratified, assured, Avouched, admitted, Submitted, Contended, corroborated, Averred, attested, accepted, pronounced, stated, professed, Claimed, pledged, set down, proclaimed, expressed, certified, affirmed.
believed (verb)
gathered, given faith, held, presumed, Surmised, credited, put faith in, Assented, took for granted, assumed, Believed, understood, Judged, Deemed, supposed, concluded, trusted, taken for granted, gave faith.
conserved (verb)
conserved, kept, preserved, reserved, saved.
continued (verb)
extended, sustained, Persevered, Persisted, abided, prolonged, protracted, continued.
ordered (verb)
composed, integrated, arrayed, orchestrated, stratified, ranked, formed, Screened, placed, unified, established, Marshalled, adjusted, Schemed, grouped, structured, planned, graded, harmonized, shaped, systematized, unsnarled, settled, Subordinated, schematized, Charted, Devised, Classed, prepared, stabilized, Methodized, separated, regulated, typed, Scored, Sifted, pigeonholed, categorized, cast, Rated, arranged, classified, mediated, rationalized, sorted, designed, normalized, Collated, fixed, controlled, programmed, organized, ordered, Righted, plotted, balanced, framed, set, scheduled.
protected (verb)
guarded, sheltered, shielded, Defended, safeguarded, protected, secured, covered.
retained (verb)
retained, Prevented, Hindered.

Other synonyms:

Other relevant words:
kept up, repaired, serviceable, serviced, well-kept.

Usage examples for maintained

  1. I should not wonder if I were too late, and the thing had been actually maintained – A Budget of Paradoxes, Volume II (of II) by Augustus de Morgan
  2. " We have too much and too long maintained a good policy," said Guizot afterward. – The Great Events by Famous Historians, Vol. 17 by Charles Francis Horne
  3. " Oh, I'm not," Penny maintained – The Clock Strikes Thirteen by Mildred A. Wirt