unimaginative (adj.)

• arid
• ascetic
• austere
• bald
• bare
• barren
• candid
• common
• commonplace
• direct
• dry
• dull
• earthbound
• flat
• frank
• homely
• homespun
• humdrum
• infertile
• insipid
• lean
• literal
• matter-of-fact
• mundane
• natural
• neat
• open
• ordinary
• pedestrian
• plain
• prosaic
• prose
• prosy
• pure
• rustic
• severe
• simple
• sober
• spare
• staid
• stark
• stolid
• straightforward
• stuffy
• tiresome
• unadorned
• unaffected
• unembellished
• unimpassioned
• uninspired
• uninventive
• unoriginal
• unromantic
• unvarnished
• vapid