primal

adj. primeval, ancient; initial, first; main, central; extremely important; essential, fundamental

Primal can have multiple meanings:Primal (Eureka episode), a season 1 episode of EurekaPrimal (video game), an action video game for the PlayStation 2. It tells the story of Jennifer Tate, an orphan teenage girl searching for her boyfriend in a dimension of demons. humph!
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Adjective
1. 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"
(synonym) cardinal, central, fundamental, key
(similar) important, of import
2. having existed from the beginning; in an earliest or original stage or state; "aboriginal forests"; "primal eras before the appearance of life on earth"; "the forest primeval"; "primordial matter"; "primordial forms of life"
(synonym) aboriginal, primeval, primaeval, primordial
(similar) early

(a.)
First; primary; original; chief.
  

Synonyms and related words:
ab ovo, abecedarian, aboriginal, antenatal, arch, atavistic, austere, autochthonous, banner, bare, basal, basic, basilar, beginning, bodily, born, budding, capital, cardinal, central, champion, chaste, chief, coeval, congenital, connatal, connate, connatural, constituent, constitutional, constitutive, creative, crowning, crucial, dominant, elemental, elementary, embryonic, essential, fetal, first, focal, foremost, formative, foundational, fundamental, generative, genetic, germinal, gestatory, great, gut, headmost, hegemonic, hereditary, homely, homespun, homogeneous, in embryo, in its infancy, in ovo, in the blood, in the bud, inaugural, inborn, inbred, incarnate, inceptive, inchoate, inchoative, incipient, incunabular, indigenous, indivisible, infant, infantile, inherited, initial, initiative, initiatory, innate, instinctive, instinctual, introductory, inventive, irreducible, leading, magisterial, main, master, material, mere, monolithic, nascent, natal, native, native to, natural, natural to, of a piece, of the essence, organic, original, overruling, paramount, parturient, physical, plain, postnatal, predominant, preeminent, pregnant, prenatal, preponderant, prevailing, primary, prime, primeval, primitive, primogenial, primordial, principal, pristine, procreative, protogenic, pure, pure and simple, radical, ranking, rudimental, rudimentary, ruling, seminal, severe, simon-pure, simple, single, sovereign, spare, star, stark, stellar, substantial, substantive, supereminent, temperamental, topflight, unadorned, uncluttered, underlying, undifferenced, undifferentiated, uniform, ur