Synonyms for Initiated:

adj.

begun (adjective)
Inaugurated, established, started.
having undergone initiation (adjective)
received, acknowledged, Instated, approved, accepted, Inducted, Introduced, Installed, confirmed, instructed.
introduced into (adjective)
Inserted, Originated, Instituted, Entered, proposed.
originated (adjective)
Inaugurated.
set in motion (adjective)
Undertaken.
ventured (adjective)
Performed, Ventured, Endeavored, campaigned, Acted, Undertaken, Schemed, pursued, Maneuvered.

n.

proposed, Entered. instructed, acknowledged, Volunteered, accepted, approved, confirmed, Levied, received. initiated (noun)
experienced, initiate.

v.

began (verb)
Germinated, Originated, initialized, Began, sprouted, Embarked, developed, Commenced, Begun, Dawned, Introduced, Budded, Sprung, birthed, started, Sprang, conceived, Inaugurated, hatched, stemmed, prepared, Emerged, Created, Inducted, formed.
installed (verb)
put, established, planted, fixed, implanted, Ensconced, positioned, located, rooted, embedded, Instated, Installed, placed, Inserted, Grafted, connected.
originated (verb)
Generated, produced, Instituted, invented.
ventured (verb)
Undertook, Did, Proceeded, done.

Other synonyms:

Other relevant words:
initiate, experienced, Entered, instructed, received, proposed.

Usage examples for initiated

  1. A movement is quietly initiated among the solitaries, looking toward an investigation of Riverside. – Prison Memoirs of an Anarchist by Alexander Berkman
  2. For Mary was increasingly agreeable as the years went on, and had now quite a position of her own in London, as a charming woman without angles or apparent egotisms; one of the initiated besides, whom any dinner- party might be glad to capture. – The Marriage of William Ashe by Mrs. Humphry Ward
  3. No; we do all these to those who get initiated – The Clouds by Aristophanes