primal (
http://definr.com/primal)
adj 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" [syn:
cardinal,
central,
fundamental,
key]
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"
[syn:
aboriginal,
primeval,
primaeval,
primordial]