THESAURUS
indirect
O-shaped, aberrant, aberrative, accessory, accidental, additional, adscititious, adventitious, ambagious, amoral, ancillary, artful, backhand, backhanded, calculating, chiseling, circuitous, circular, circumambient, circumlocutional, circumlocutory, collateral, collusive, coming, conscienceless, contingent, corrupt, corrupted, covinous, crafty, criminal, crooked, cunning, dark, deceitful, deflectional, departing, desultory, deviant, deviating, deviative, deviatory, devious, digressive, discursive, dishonest, dishonorable, divagational, divergent, doubtful, dubious, duplicitous, errant, erratic, evasive, eventual, excursive, false, falsehearted, felonious, finagling, final, fishy, fraudulent, furtive, guileful, helical, ill-got, ill-gotten, immoral, incidental, insidious, labyrinthine, last, left-handed, mazy, meandering, not kosher, oblique, orbital, out-of-the-way, periphrastic, planetary, questionable, rambling, rotary, rotten, round, roundabout, roving, scheming, secondary, serpentine, shady, shameless, sharp, shifting, shifty, side, sidelong, sinister, sinistral, sinuous, slippery, snaky, sneaking, sneaky, spiral, stray, subordinate, subsidiary, surreptitious, suspicious, swerving, tortuous, treacherous, trickish, tricky, turning, twisted, twisting, two-faced, ultimate, unconscienced, unconscientious, unconscionable, underhand, underhanded, undirected, unethical, unprincipled, unsavory, unscrupulous, unstraightforward, vagrant, veering, wandering, wily, winding, without remorse, without shame, zigzag
ROGET THESAURUS
indirect
Circuit
N
circuit, roundabout way, digression, detour, circumbendibus, ambages, loop, winding, zigzag, circuitous,
indirect, roundabout, zigzag, backhanded, by a side wind, by an
indirect course, in a roundabout way, from pillar to post.
Deviation
N
deviation, swerving, obliquation, warp, refraction, flection, flexion, sweep, deflection, deflexure, declination, diversion, digression, depart from, aberration, divergence, zigzag, detour, divagation, wandering, vagrancy, evagation, bypaths and crooked ways, byroad, sidling, knight's move at chess, deviating, aberrant, errant, excursive, discursive, devious, desultory, loose, rambling, stray, erratic, vagrant, undirected, circuitous,
indirect, zigzag, crab-like, astray from, round about, wide of the mark, to the right about, all manner of ways, circuitously, obliquely, sideling, like the move of the knight on a chessboard.
Implication
N
latency, implication, latency, inexpression, hidden meaning, occult meaning, occultness, mystery, cabala, anagoge, silence, concealment, more than meets the eye, more than meets the ear, Delphic oracle, le dessous des cartes, undercurrent, implication, logical implication, logical consequence, entailment, allusion, insinuation, innuendo, adumbration, something rotten in the state of Denmark, snake in the grass, secret, darkness, invisibility, imperceptibility, latent, lurking, secret, occult, implied, dormant, abeyant, unapparent, unknown, unseen, in the background, invisible, indiscoverable, dark, impenetrable, unspied, unsuspected, unsaid, unwritten, unpublished, unbreathed, untalked of, untold &c, unsung, unexposed, unproclaimed, undisclosed, unexpressed, not expressed, tacit, undeveloped, solved, unexplained, untraced, undiscovered, untracked, unexplored, uninvented,
indirect, crooked, inferential, by inference, by implication, implicit, constructive, allusive, covert, muffled, steganographic, understood, underhand, underground, delitescent, concealed, by a side wind, sub silentio, in the background, behind the scenes, behind one's back, on the tip of one's tongue, secretly, between the lines, thereby hangs a tale, tacitum vivit sub pectore vulnus, where there's smoke, there's fire.