Synonyms and related words :
absolute, central, certain, close, concealed, concrete, constitutional, deep, deep-seated, defined, definite, detailed, determinate, different, distinct, distinguished, esoteric, especial, essential, exceptional, express, extraordinary, familiar, fixed, focal, gut, hidden, immanent, implanted, implicit, inalienable, individual, indoor, indwelling, infixed, ingrained, inherent, inmost, innermost, inside, interior, internal, intestine, intimate, intrinsic, inward, inwrought, irreducible, middle, minute, noteworthy, nuclear, particular, personal, precise, private, resident, respective, secret, several, singular, solipsistic, special, specific, subjective, unalienable, unchallengeable, unquestionable, visceral