basic (n.)
basic (adj.)
- aboriginal
- acid
- austere
- bare
- basal
- basilar
- biochemical
- bottom
- capital
- central
- chaste
- chemical
- chief
- constituent
- constitutive
- crucial
- electrochemical
- elemental
- elementary
- embryonic
- essential
- focal
- fundamental
- generative
- genetic
- germinal
- homely
- homespun
- homogeneous
- indispensable
- indivisible
- irreducible
- key
- life-and-death
- life-or-death
- main
- material
- mere
- metameric
- monolithic
- original
- photochemical
- physicochemical
- plain
- polymeric
- pregnant
- primal
- primary
- prime
- primeval
- primitive
- primordial
- principal
- pristine
- pure
- radical
- rudimentary
- seminal
- severe
- simple
- single
- spare
- stark
- substantial
- substantive
- unadorned
- uncluttered
- underlying
- undifferentiated
- uniform
- vital