even if ...,...cannot

not ... at all

pretty, gorgeous, beautiful / clear, clean, pure / clean, not dirty / tidy, neat, everything put away / fair, impartial, of clear conscience

very, exceedingly, awfully / (before a negative form) not at all, at all, by no means

glass, crystal

a drinking glass, a tumbler

a paper cup

a type of glassware historically used for shaved ice

collotype

(mineralogy) sanidine