platitudinous (adj.)

• aphoristic
• axiomatic
• banal
• bewhiskered
• bromidic
• common
• commonplace
• corny
• crisp
• current
• cut-and-dried
• epigrammatic
• familiar
• formulaic
• fusty
• gnomic
• hackneyed
• moth-eaten
• musty
• notorious
• pithy
• pointed
• proverbial
• public
• pungent
• sententious
• set
• square
• stale
• stereotyped
• stock
• succinct
• terse
• threadbare
• timeworn
• trite
• truistic
• unoriginal
• well-known
• well-worn
• worn