embryonic (adj.)
- abecedarian
- aboriginal
- antenatal
- atomic
- autochthonous
- backward
- basal
- basic
- beginning
- budding
- callow
- central
- coarse
- corpuscular
- creative
- crucial
- crude
- defective
- deficient
- elemental
- elementary
- evanescent
- failing
- fetal
- formative
- fundamental
- generative
- genetic
- germinal
- granular
- immature
- impalpable
- imperceptible
- imponderable
- inadequate
- inappreciable
- inaugural
- inceptive
- inchoate
- inchoative
- incipient
- incomplete
- indiscernible
- infantile
- infinitesimal
- initial
- initiative
- initiatory
- intangible
- introductory
- inventive
- invisible
- lacking
- larval
- microcosmic
- microscopic
- missing
- molecular
- nascent
- natal
- original
- part
- partial
- parturient
- patchy
- postnatal
- pregnant
- prenatal
- primal
- primary
- prime
- primeval
- primitive
- primordial
- pristine
- procreative
- radical
- reductive
- rough
- roughhewn
- rude
- rudimentary
- scant
- scanty
- scrappy
- seminal
- short
- shy
- simplistic
- sketchy
- stunted
- subatomic
- tenuous
- thin
- ultramicroscopic
- uncultivated
- uncultured
- uncut
- underdeveloped
- undeveloped
- unfinished
- unformed
- unhewn
- unpolished
- unprocessed
- unrefined
- unseeable
- untreated
- ur
- wanting