uncontestable

Cannot be disputed

Uncontestable means impossible to dispute or challenge—so clearly true or valid that no reasonable argument can be made against it.

The evidence was uncontestable.

The more common form is incontestable, which carries the same meaning.

undeniable

incontrovertible

Impossible to deny

indisputableImpossible to contest
irrefutableImpossible to disprove
unquestionableCannot be challenged

unarguable · inarguable · undeniable · unassailable · indubitable · certain · definite · conclusive · decisive · final

authoritative

definitive

Settling a question finally

authoritativeHaving recognized expertise
officialAuthority-sanctioned person or status
bindingLegally or morally required

sovereign · ultimate · supreme · unchallenged · undisputed · accepted · established · recognized · canonical · orthodox

convincing

compelling

Powerfully engaging or persuasive

persuasiveAble to convince others
credibleWorthy of acceptance
believableAble to convince

plausible · sound · valid · logical · coherent · forceful · potent · effective · substantive · well-founded

Opposites

disputability

uncontestablecontestable

Able to be challenged

debatable · disputable · arguable · challengeable · questionable

certainty/definitiveness

uncontestableuncertain

Not firmly known

doubtful · dubious · questionable · ambiguous · equivocal

Family

contest, contestant, contested, contesting, uncontested, incontestable, contestable, contestation, contester

Familiarity: Top 500,000
Profile: Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G