Possessing firmness or fixedness; firm; hard; solid. [1913 Webster]
"The humoral and consistent parts of the body." [1913 Webster]
Having agreement with itself or with something else; having harmony among its parts; possesing unity; accordant; harmonious; congruous; compatible; uniform; not contradictory. [1913 Webster]
"Show me one that has it in his power
To act consistent with himself an hour." [1913 Webster]

"With reference to such a lord, to serve and to be free are terms not consistent only, but equivalent." [1913 Webster]
Living or acting in conformity with one's belief or professions. [1913 Webster]
"It was utterly to be at once a consistent Quaker and a conspirator." [1913 Webster]

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OXFORD DICTIONARY

consistent, adj. (usu. foll. by with)
1 compatible or in harmony; not contradictory.
2 (of a person) constant to the same principles of thought or action.

Derivative

consistently adv.

Etymology

L consistere (as consist)

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THESAURUS

consistent

accordant, affirmative, agreeable, agreeing, alike, answerable, at one, authoritative, automatic, balanced, binding, clean-cut, clear, clear as crystal, clear as day, clear-cut, coexistent, coexisting, cogent, coherent, coincident, coinciding, commensurate, compatible, concordant, concurring, conformable, conforming, congenial, congruent, congruous, connected, consecutive, consentaneous, consentient, consonant, constant, continuous, cooperating, cooperative, correspondent, corresponding, crisp, crystal-clear, crystalline, defined, definite, dependable, devoted, direct, distinct, en rapport, equable, equal, equivalent, even, explicit, express, faithful, firm, flat, good, harmonious, homogeneous, immutable, in accord, in agreement, in harmony, in keeping, in rapport, in sync, in synchronization, inaccordance, inharmony, invariable, joined, just, lawful, legal, legitimate, level, like-minded, limpid, logical, loud and clear, loyal, lucid, luminous, marble-constant, measured, mechanical, methodic, monolithic, of a piece, of like mind, of one mind, on all fours, ordered, orderly, pellucid, persistent, perspicuous, plain, positive, predictable, proportionate, reconcilable, regular, robotlike, self-consistent, sequent, sequential, serial, simple, smooth, solid, sound, stable, staunch, steadfast, steady, straightforward, substantial, sufficient, symbiotic, sympathetic, synchronized, synchronous, systematic, tight, translucent, transparent, transpicuous, true, true-blue, unambiguous, unanimous, unbroken, unchangeable, unchanged, unchanging, unconfused, undeviating, undifferentiated, undiversified, unequivocal, unfailing, uniform, uninterrupted, unisonant, unisonous, univocal, unmistakable, unruffled, unswerving, unvaried, unvarying, valid, weighty, well-defined, well-founded, well-grounded

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ROGET THESAURUS

consistent

Uniformity

N uniformity, homogeneity, homogeneousness, consistency, connaturality, connaturalness, homology, accordance, conformity, agreement, consonance, uniformness, regularity, constancy, even tenor, routine, monotony, uniform, homogeneous, homologous, of a piece, consistent, connatural, monotonous, even, invariable, regular, unchanged, undeviating, unvaried, unvarying, unsegmented, uniformly, uniformly with, in harmony with, always, invariably, without exception, without fail, unfailingly, never otherwise, by clockwork, ab uno disce omnes.

Agreement

N agreement, accord, accordance, unison, harmony, concord, concordance, concert, understanding, mutual understanding, conformity, conformance, uniformity, consonance, consentaneousness, consistency, congruity, congruence, keeping, congeniality, correspondence, parallelism, apposition, union, fitness, aptness, relevancy, pertinence, pertinencey, sortance, case in point, aptitude, coaptation, propriety, applicability, admissibility, commensurability, compatibility, cognation, adaption, adjustment, graduation, accommodation, reconciliation, reconcilement, assimilation, consent, concurrence, cooperation, right man in the right place, very thing, quite the thing, just the thing, agreeing, suiting, in accord, accordant, concordant, consonant, congruous, consentaneous, correspondent, congenial, coherent, becoming, harmonious reconcilable, conformable, in accordance with, in harmony with, in keeping with, in unison with at one with, of one mind, of a piece, consistent, compatible, proportionate, commensurate, on all fours, apt, apposite, pertinent, pat, to the point, to the purpose, happy, felicitous, germane, ad rem, in point, on point, directly on point, bearing upon, applicable, relevant, admissible, fit adapted, in loco, a propos, appropriate, seasonable, sortable, suitable, idoneous, deft, meet, at home, in one's proper element, a propos of, pertinently, rem acu tetigisti, if the shoe fits, wear it, the cap fits, auxilia humilia firma consensus facit, discers concordia.

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