rudimentary (adj.)

• abecedarian
• aboriginal
• antenatal
• autochthonous
• backward
• basal
• basic
• basilar
• beginning
• budding
• central
• coarse
• creative
• crucial
• crude
• dumpy
• dwarfish
• elemental
• elementary
• elfin
• embryonic
• essential
• fetal
• first
• formative
• fundamental
• generative
• genetic
• germinal
• immature
• imperfect
• inaugural
• inceptive
• inchoate
• inchoative
• incipient
• infantile
• initial
• initiative
• initiatory
• introductory
• inventive
• meager
• midget
• nascent
• natal
• original
• parturient
• postnatal
• pregnant
• prenatal
• primal
• primary
• prime
• primeval
• primitive
• primordial
• pristine
• procreative
• radical
• reductive
• rough
• roughhewn
• rude
• runty
• scraggy
• scrubby
• seminal
• shriveled
• shrunken
• simplistic
• squat
• stunted
• uncultivated
• uncultured
• uncut
• underdeveloped
• underlying
• undersize
• undersized
• undeveloped
• unfinished
• unformed
• unhewn
• unpolished
• unprocessed
• unrefined
• unshaped
• untreated
• ur
• vestigial
• wizened