essential
meaningful
ab ovo
abstract noun
adherent noun
adjectival
adverbial
appreciable
attributive
basal
basic
bedrock
central
collective noun
common noun
concrete
conjunctive
constituent
constitutive
copulative
correct
elemental
elementary
enduring
firm
focal
formal
functional
fundamental
gerund
glossematic
grammatic
gut
hypostasis
in essence
independent
indispensable
intransitive
life-and-death
life-or-death
linking
material
meaty
nominal
noun
noun phrase
of the essence
of vital importance
original
palpable
personal pronoun
above
constitutional
constructive
crucial
definite
interrogative
neuter
nominative
participle
plural
societal
structural
tangible
vital
adjective
procedural