inbuilt :: Lexipedia - Where words have meaning

constitutional, integral, inherent, built-in

adj. existing as an essential constituent or characteristic; "the Ptolemaic system with its built-in concept of periodicity"; "a constitutional inability to tell the truth"

essential

adj. basic and fundamental; "the essential feature"

inalienable, unalienable

adj. incapable of being repudiated or transferred to another; "endowed by their Creator with certain unalienable rights"

fundamental, deep-rooted, deep-seated, ingrained

adj. (used especially of ideas or principles) deeply rooted; firmly fixed or held; "deep-rooted prejudice"; "deep-seated differences of opinion"; "implanted convictions"; "ingrained habits of a lifetime"; "a deeply planted need"

immanent, subjective

adj. of a mental act performed entirely within the mind; "a cognition is an immanent act of mind"

cardinal, central, key, fundamental, polar, primal

adj. serving as an essential component; "a cardinal rule"; "the central cause of the problem"; "an example that was fundamental to the argument"; "computers are fundamental to modern industrial structure"

component, constituent

adj. constitutional in the structure of something (especially your physical makeup)

indispensable

adj. not to be dispensed with; essential; "foods indispensable to good nutrition"

necessary

adj. absolutely essential

constitutional, constituent, constitutive, organic

adj. constitutional in the structure of something (especially your physical makeup)

vital, life-sustaining

adj. performing an essential function in the living body; "vital organs"; "blood and other vital fluids"; "the loss of vital heat in shock"; "a vital spot"; "life-giving love and praise"

internal, inner

adj. innermost or essential; "the inner logic of Cubism"; "the internal contradictions of the theory"; "the intimate structure of matter"

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