sappy (adj.)

• absurd
• apish
• asinine
• balmy
• bathetic
• batty
• beery
• beguiled
• besotted
• brainless
• budding
• buffoonish
• callow
• cloying
• cockeyed
• crazy
• credulous
• daft
• dazed
• dewy
• dizzy
• doting
• drippy
• dumb
• fantastic
• fatuous
• flaky
• flowing
• fluent
• fluid
• fond
• foolish
• fuddled
• futile
• gaga
• gooey
• goofy
• green
• growing
• gushing
• harebrained
• idiotic
• imbecile
• immature
• inane
• inept
• inexperienced
• infatuated
• ingenuous
• innocent
• insane
• intact
• juicy
• kooky
• liquid
• loony
• mad
• maudlin
• mawkish
• minor
• moronic
• mushy
• naive
• namby-pamby
• nostalgic
• nutty
• preposterous
• raw
• ripening
• romantic
• runny
• screwy
• senseless
• sentimental
• silly
• sloppy
• slushy
• soft
• soppy
• soupy
• sticky
• stupid
• succulent
• teary
• tender
• thoughtless
• underage
• undeveloped
• unfledged
• unformed
• unripe
• unseasoned
• vernal
• virginal
• wacky
• watery
• wet
• witless