Synonyms for Incidental:

• adj.

  •accidental (adjective)
  • coincidental,
  • uncalculated.
  •all (adjective)
  • incident.
  •chance (adjective)
  • fluky.
  •circumstantial (adjective)
  • circumstantial,
  • episodic,
  • eventual,
  • inconclusive,
  • indirect,
  • inferential,
  • landmark,
  • occasional,
  • presumptive,
  • uncertain.
  •conditional (adjective)
  • iffy,
  • provisional.
  •extraneous (adjective)
  • supplementary,
  • inapposite,
  • Non-essential.
  •provisory (adjective)
  • provisory.
  •related; minor (adjective)
  • accidental,
  • accompanying,
  • adventitious,
  • ancillary,
  • attendant,
  • casual,
  • chance,
  • circumstantial,
  • coincidental,
  • concomitant,
  • concurrent,
  • contingent,
  • contributing,
  • contributory,
  • fluke,
  • fortuitous,
  • irregular,
  • nonessential,
  • occasional,
  • odd,
  • random,
  • secondary,
  • subordinate,
  • subsidiary.
  •simultaneous (adjective)
  • concurrent.

• n.

  •
  • arbitrary,
  • coincidental,
  • random.
  •
  • adjunct,
  • adscititious,
  • adventitious,
  • detail,
  • Minutiae,
  • Supervenient.
  •
  • ancillary,
  • collateral,
  • lesser,
  • subordinate,
  • subsidiary.
  •incidental (noun)
  • accompanying,
  • attendant,
  • by,
  • bye,
  • concomitant,
  • incident,
  • incidental expense,
  • incidental to,
  • inessential,
  • minor expense,
  • nonessential,
  • parenthetic,
  • parenthetical,
  • peripheral,
  • related,
  • secondary,
  • side,
  • unessential.
  •possession (noun)
  • incidental expense,
  • minor expense.
  •subsidiary (noun)
  • accidental,
  • trivial.

• Other synonyms:

  •
  • accidentally,
  • adscititious,
  • adventitious,
  • coincidence,
  • coincidentally,
  • collateral,
  • fluke,
  • happenstance,
  • least,
  • lesser,
  • serendipitous,
  • serendipity,
  • stochastic,
  • subordinate,
  • subservient,
  • unlucky.
  •
  • ancillary,
  • subsidiary.
  •
  • accident,
  • tertiary.
  •aimless
  • haphazard.
  •incidental
  • accidental.
  •irrelevant
  • extraneous.
  •Other relevant words:
  • abide by,
  • accessory,
  • acciaccatura,
  • accident,
  • accidental,
  • accidentally,
  • accompany,
  • accompanying,
  • accomplish,
  • accordance,
  • achieve,
  • added,
  • addendum,
  • addition,
  • additional,
  • adjourn,
  • adjunct,
  • admit,
  • ado,
  • adopt,
  • adrift,
  • adscititious,
  • adventitious,
  • adventure,
  • afloat,
  • afoot,
  • aleatory,
  • alternate,
  • ancillary,
  • appendage,
  • appoggiatura,
  • appurtenance,
  • appurtenant,
  • apropos,
  • arabesque,
  • arbitrary,
  • article,
  • aspect,
  • assemble,
  • associate,
  • at issue,
  • at times,
  • attendant,
  • auxiliary,
  • by,
  • by the way,
  • bye,
  • cadence,
  • cadenza,
  • case,
  • casual,
  • casually,
  • casualty,
  • catch,
  • causeless,
  • chance,
  • chancy,
  • charge,
  • circumstance,
  • circumstantial,
  • circumstantially,
  • coincide,
  • coincidence,
  • coincidental,
  • coincidentally,
  • collateral,
  • coloratura,
  • combine,
  • come,
  • commonplace,
  • comply,
  • comprehend,
  • comprise,
  • concomitant,
  • concurrence,
  • concurrent,
  • conditional,
  • conform to,
  • conjunction,
  • connect,
  • consequent,
  • consign,
  • contain,
  • contingency,
  • contingent,
  • contributing,
  • contributory,
  • correspondence,
  • cost,
  • count,
  • critical,
  • current,
  • datum,
  • defer,
  • deliver,
  • dependent,
  • derived,
  • detail,
  • dicey,
  • disbursement,
  • disconnected,
  • discontinuous,
  • division,
  • element,
  • embellishment,
  • embrace,
  • ensuant,
  • ensue,
  • espouse,
  • eventuality,
  • execute,
  • expenditure,
  • expense,
  • extend,
  • extra,
  • extramural,
  • extraneous,
  • extrinsic,
  • facet,
  • fact,
  • factor,
  • fall out,
  • fatal,
  • flight,
  • flourish,
  • fluke,
  • fluky,
  • follow,
  • foolish,
  • foreign,
  • foreigner,
  • fortuitous,
  • frivolous,
  • fulfill,
  • given,
  • go after,
  • go along,
  • go with,
  • grace,
  • grace note,
  • haphazard,
  • haphazardly,
  • haply,
  • happening,
  • happenstance,
  • happy,
  • hearsay,
  • hit-or-miss,
  • iffy,
  • imitate,
  • immaterial,
  • impertinent,
  • in hand,
  • in question,
  • in the air,
  • inadmissible,
  • inadvertent,
  • inapplicable,
  • inapposite,
  • inappropriate,
  • inapt,
  • incidence,
  • incident,
  • incidental expense,
  • incidental to,
  • incidentally,
  • inconsequent,
  • inconsequential,
  • inconsiderable,
  • indefinite,
  • indeterminate,
  • indiscriminate,
  • inessential,
  • infrequent,
  • insignificant,
  • instance,
  • intermittent,
  • irregular,
  • irrelevant,
  • item,
  • join,
  • keep abreast,
  • keep company,
  • least,
  • less,
  • lesser,
  • little,
  • lucky,
  • malapropos,
  • marginal,
  • matter,
  • minor,
  • minor expense,
  • minute,
  • minutia,
  • miscellaneous,
  • modal,
  • needless,
  • negligible,
  • nonce,
  • nonessential,
  • objective,
  • odd,
  • off,
  • ongoing,
  • ornament,
  • other,
  • out-of-the-way,
  • outsider,
  • paltry,
  • parenthetic,
  • parenthetical,
  • part-time,
  • particular,
  • passage,
  • passing,
  • periodic,
  • peripheral,
  • petty,
  • picayune,
  • piddling,
  • point,
  • pointless,
  • possibility,
  • possible,
  • prevailing,
  • prevalent,
  • price,
  • providential,
  • provisional,
  • provisory,
  • puny,
  • pursue,
  • random,
  • regard,
  • related,
  • respect,
  • resultant,
  • risky,
  • roulade,
  • run,
  • seasonable,
  • seasonably,
  • secondary,
  • secondhand,
  • serendipitous,
  • serendipity,
  • shallow,
  • side,
  • slight,
  • small fry,
  • spare,
  • spare time,
  • sporadic,
  • statistical,
  • stochastic,
  • stranger,
  • stray,
  • subordinate,
  • subservient,
  • subsidiary,
  • successive,
  • sundry,
  • superficial,
  • superfluous,
  • supernumerary,
  • supplement,
  • supplemental,
  • supplementary,
  • tangential,
  • tertiary,
  • thing,
  • transient,
  • trifling,
  • trivial,
  • turn,
  • uncaused,
  • under way,
  • undetermined,
  • undirected,
  • unessential,
  • unexpected,
  • unforeseeable,
  • unforeseen,
  • unimportant,
  • unintended,
  • unintentional,
  • unite,
  • unlooked-for,
  • unlucky,
  • unnecessary,
  • unneeded,
  • unordered,
  • unorganized,
  • unplanned,
  • unpredictable,
  • unpremeditated,
  • unspecific,
  • unspecified,
  • unsystematic,
  • valueless,
  • varied,
  • various,
  • worthless,
  • Ascititious,
  • Destinal,
  • Doing,
  • Eventuating,
  • Extrinsical,
  • Irrelative,
  • Minutiae,
  • Occurring,
  • Omissible,
  • expenses,
  • Pralltriller,
  • Superadded,
  • Superaddition,
  • Supervenient,
  • going on,
  • taking place,
  • mordent,
  • fatidic,
  • side issue,
  • Non-essential,
  • uncalculated,
  • in the cards,
  • in the wind,
  • beside the point,
  • beside the question,
  • on foot,
  • on the cards,
  • non-specific,
  • nihil ad rem,
  • not at issue,
  • off the subject,
  • minor detail,
  • obiter dicta,
  • limitative,
  • fioritura.

Antonyms for Incidental:

• adj.

  • all
    basic.
  • related; minor
    basic, chief, decided, deliberate, designed, essential, fundamental, important, necessary, planned, premeditated, vital.
  • Other antonyms:
    all-important, antecedent, basal, base, basic, big, calculated, certain, chief, conscious, consequential, decisive, deliberate, destined, distinctive, distinguished, dominant, elemental, elementary, eminent, essential, eventful, exceptional, expected, famous, fatal, fateful, fixed, foreordained, foreseeable, foreseen, freewill, fundamental, grassroots, great, illustrious, important, impressive, inevitable, intended, intentional, key, knowing, major, material, meaningful, momentous, notorious, outstanding, overbearing, overriding, planned, predestined, predetermined, predictable, preeminent, premeditated, prescribed, prestigious, primary, principal, prominent, radical, remarkable, renowned, rudimentary, set, significant, substantial, sure, underlying, unforced, valuable, voluntary, volunteer, weighty, willful, worthwhile, worthy, Prepense, preordained, premeditative, overmastering.

• Other antonyms:

  • n. t.
    basal, base, basic, big, calculated, certain, chief, conscious, consequential, crucial, decided, decisive, deliberate, designed, destined, distinctive, distinguished, dominant, elemental, elementary, eminent, essential, eventful, exceptional, expected, famous, fatal, fateful, fixed, foreordained, foreseeable, foreseen, freewill, fundamental, grassroots, great, illustrious, important, impressive, inevitable, intended, intentional, key, knowing, major, material, meaningful, momentous, necessary, notorious, outstanding, overbearing, overriding, planned, predestined, predetermined, predictable, preeminent, premeditated, prescribed, prestigious, primary, principal, prominent, radical, remarkable, renowned, rudimentary, set, significant, substantial, sure, underlying, unforced, valuable, vital, voluntary, volunteer, weighty, willful, worthwhile, worthy, Prepense, preordained, premeditative, overmastering, unfrivolous.