veracity, legality, authenticity, legitimacy, enforceability, lawfulness, constitutionality, genuineness, applicability, plausibility, rightfulness, relevance, viability, truthfulness, admissibility, worthiness, invalid, historicity, appropriateness, reasonability, correctness, merits, practicability, voluntariness, verity, credibility, propriety, effectiveness, permissibility, vires, contentions, impartiality, indefiniteness, factuality, tenability, usefulness, disproof, invalidation, inapplicability, trustworthiness, justness, authorship, bona fides, pertinence, defensibility, accuracy, separability, representativeness, infallibility, invalidity, integrity, falsity, provenance, insurability, dubiousness, desirability, conclusiveness, exceptionality, ipse dixit, averment, whether, significance, numerosity, feasibility, suitability, meaningfulness, equivalence, fairness, primacy, irrevocability, assertions, efficacy, obviousness, papal infallibility, epistemology, caselaw, causation, credence, essentiality, acceptability, substantiation, null hypothesis, transferability, sincerity, reargument, maintainability, supposition, materiality, soundness, competence, objectivity, locus standi, taxability, cogency, rigorousness, definitiveness, illegality, incommensurability, monism, superiority, obiter dictum, precedential, reliability, relevancy, intelligibility, justification, universality, dependability, validation, predictability, comparability

effect, force

., allow, appraiser, authenticator, condition, convert, convince, demonstrate, earnest, effect, establish, expire, fabulous, force, formal logic, in earnestp, mathematical logic, mythic, mythical, mythologic, mythological, notary, notary public, plausibility, plausibleness, precondition, probate, prove, question, refine, replication, run out, shew, show, sincere, solemn, stipulation, superimposed, symbolic logic, take into account, unvarying, validate, win over

believability, credibleness

rigor, rigour, validness