unchallengeable
71axiomatic — I adjective a priori, absolute, aphoristic, apodictic, apparent, ascertained, assured, beyond all question, beyond dispute, categorical, certain, decided, decisive, definite, determinate, doubtless, incontestable, incontrovertible, indubious,… …
72evenhanded — I adjective detached, disinterested, dispassionate, equal, equitable, fair, fair minded, impartial, indifferent, just, neutral, objective, proper, scrupulous, unbiased, unbribed, unchallengeable, uncorrupt, uncorrupted, unprejudiced, upright,… …
73incontrovertible — I adjective absolute, apodictic, ascertained, assured, authoritative, beyond a shadow of a doubt, beyond contradiction, capable of proof, certain, clear cut, conclusive, definite, demonstrable, established, factual, inappealable, incontestable,… …
74inexpugnable — I adjective defensible, formidable, hardy, immune, impenetrable, imperdible, impregnable, indomitable, inexpugnabilis, inextinguishable, insuperable, insurmountable, invincible, inviolable, invulnerable, irresistible, mighty, potent, powerful,… …
75invulnerable — I adjective certain, defensible, entrenched, fortified, immune, impenetrable, impregnable, indestructible, indomitable, inexpugnable, infrangible, insuperable, invincible, inviolable, permanent, safe, scatheless, secure, tenable, unassailable,… …
76irrefutable — I adjective axiomatic, axiomatical, beyond doubt, certain, certus, demonstrable, firmus, inappealable, incontestable, incontrovertible, indisputable, indubious, indubitable, irrefragable, past dispute, positive, proven, questionless, sure,… …
77irreprehensible — I adjective above suspicion, above board, blameless, circumspect, exalted, faultless, free from fault, free of guilt, guiltless, honest, impeccable, incorruptible, inculpable, innocens, innocent, innoxious, inoffensive, irreproachable,… …
78positive — I (confident) adjective assured, believing, certain, certus, convinced, decided, decisive, definite, determined, fully convinced, insistent, perfectly sure, persuaded, reassured, satisfied, secure, self assured, self confident, sure, trusting,… …
79tenable — I adjective acceptable, befitting, believable, capable of being maintained, defendable, defensible, dependable, deserving, fitting, immune, imperdible, impregnable, inviolable, invulnerable, justifiable, legitimate, logical, maintainable,… …
80unalienable — un·alien·able /ˌən āl yə nə bəl, ā lē ə / adj: not alienable: inalienable Merriam Webster’s Dictionary of Law. Merriam Webster. 1996. unalienable …
