bitter and astringent; pained; agonized

astringent; tart; acerbity; unsmooth; rough (surface); hard to understand; obscure

cold and sluggish; chilly

salty and bitter; acerbic

dry and rough (skin); hoarse (voice); dry and heavy (style)

clumsy and incomprehensible; botched writing

difficult to understand; cryptic

acerbic (taste); astringent

sluggish pulse

unripe; tart; not fully proficient; somewhat shaky

to remove astringent taste

clumsy in speech; tongue tied

awkward; lame; difficulty (esp. in moving); not smooth

sour; acrid; (fig.) bitter; painful

underripe; (fig.) young and inexperienced

to be embarrassingly short of money

abstruse and unfathomable (idiom)