Synonyms for Indirect:

adj.

circumstantial (adjective)
circumstantial, landmark, inferential, inconclusive, presumptive, occasional, incidental, eventual, uncertain, episodic.
crooked (adjective)
meandering.
derivative (adjective)
secondary.
diagonal (adjective)
biased, aslant, diagonal, crosswise, sloping, leaning, bent, inclined, Deviated, angled, slanting, devious.
discursive (adjective)
excursive.
oblique (adjective)
zigzag.
roundabout; unintended (adjective)
devious, winding, crooked, sneaky, eventual, oblique, long-winded, out-of-the-way, tortuous, circular, long, obscure, rambling, subsidiary, complicated, collateral, secondary, circumlocutory, wandering, twisting, duplicitous, incidental, discursive, underhand, implied, periphrastic, zigzag, sidelong, circuitous, meandering, erratic.
side (adjective)
sidelong.
subtle (adjective)
elusive, implicit, implied, delicate, Insinuated, subtle.
underhand (adjective)
lubricious.

n.

accordingly, thus, therefore, knock on, as a consequence/in consequence, From, hence, ensuing, by virtue of something, consequently. indirect (noun)
devious, asquint, excursive, askance, winding, secondary, backhanded, circumlocutory, collateral, roundabout, discursive, meandering, squint-eyed, squinty, periphrastic, circuitous, hearsay, allusive, digressive, rambling, mediate, ambagious, tortuous, squint, oblique, mealymouthed, sidelong, mealy-mouthed, circumlocutious, diversionary, askant, wandering.
roundabout (noun)
crooked, auxiliary, long-winded, erratic, twisting, out-of-the-way, complicated, obscure, zigzag, aberrant, subsidiary, long.

Other synonyms:

underhand, duplicitous, twisty. underhanded, shifty, anfractuous, guileful, lubricious. disingenuous. sneaky. circuitous
circuitous, circular.

Usage examples for indirect

  1. Besides these indirect educational features the gilds encouraged certain formal educational institutions that are of great interest, and that have been misunderstood for several centuries until recent years. – Education: How Old The New by James J. Walsh
  2. Even then he restrained himself from making so much as an indirect reference to the secret of his employe, though the matter was seldom out of his mind. – The Boy With the U.S. Miners by Francis Rolt-Wheeler
  3. The indirect approach to the relation between New York clearings and New York deposits, via the study of outside clearings in 1913 and 1914, taken in conjunction with the figures for check deposits in 1909, would seem to make it quite clear that New York clearings do not exceed New York deposits, or, indeed, constitute a substantially higher percentage of them than is the case with country clearings and deposits. – The Value of Money by Benjamin M. Anderson, Jr.