The Oxford Thesaurus An A-Z Dictionary of Synonyms INTRO ...

n. debatable, moot, doubtful, uncertain, dubious, questionable,
uncertain, undecided, unsettled, controversial; arguable: His
claim to ownership of the property is disputable.
dispute v. 1 argue with or against, question, debate, challenge,
impugn, gainsay, deny, oppose, fight (against), object to, take
exception to, disagree with, contest, confute, quarrel with,
doubt, raise doubts about, dissent (from): The council dispute
his right to build a hotel on that land. 2 argue (about),
debate, discuss, quarrel about, wrangle over, differ (on or
about): A bill of rights has occasionally been disputed in
Parliament.
--n. 3 argument, debate, disagreement, difference (of opinion),
controversy, polemic, conflict, quarrel, wrangle, velitation;
discussion; Colloq Brit argy-bargy or argie-bargie or
argle-bargle: There is a dispute about the runner's eligibility
for the race. 4 conflict, disturbance, fight, altercation, row,
disagreement, brawl, Donnybrook, feud, rumpus, fracas; strife,
discord; tiff, velitation, US spat: Four people have been
injured in the dispute.
disqualify
v. declare ineligible or unqualified, turn down or away,
reject, exclude, bar, debar, rule out: He was disqualified from
voting because of his age.
disregard v. 1 ignore, overlook, pay little or no heed or attention to,
take little or no notice or account of, dismiss from one's mind
or thoughts, turn a blind eye or deaf ear to, brush aside, pass
up, wink or blink at, make light of, let go by, gloss over, Rare
pretermit: I shall disregard those insulting remarks. 2 snub,
slight, turn up one's nose at, disparage, despise, contemn,
disdain, scorn, (give the) cold shoulder (to), cut; underrate,
underestimate, take little or no account of, undervalue,
minimize, dismiss, sneeze at, Slang brush off, give the go-by:
Visitors often disregard the cultural attractions of Las Vegas.
--n. 3 disrespect, contempt, indifference, inattention,
non-observance, neglect, heedlessness, Rare pretermission;
disdain, low regard, disesteem: Some drive with a profound
disregard for the law.