| 例句 |
unchallengeableadjective not capable of being challenged or proved wrongthe contention that there are certain unchallengeable rules governing proper grammar accomplished, certain, inarguable, incontestable, incontrovertible, indisputable, indubitable, irrefragable, irrefutable, positive, sure, unanswerable, unarguable, undeniable, unquestionable unambiguous, unequivocalabsolute, clear, conclusive, decisive, definite, hands-downuncontested, uncontradicted, undisputed, unquestioned answerable, arguable, contradictable, controvertible, debatable, disputable, doubtable, moot, negotiable, problematic(also problematical), questionable, refutable controversial, debated, disputeddoubtful, dubious, iffy, inconclusive, indecisive, uncertainambiguous, equivocalacademic(also academical), hypothetical, speculative, theoretical(also theoretic) in 1611 |