not ... at all

even if ...,...cannot

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

being fully ripe

to be fully ripe; to fully ripen

sweet, sugary, mellow / lacking saltiness / indulgent, soft / careless, lacking, lax / (figuratively) fragrant (of odor), melodious (of sound)

sweet

delicious / sweet-tasting; sweet / pleasant; pleased; content

peach

peach / peach tree