The antonyms of "picked pieces" would include words that describe items that are whole, intact, or unbroken. These words could include "untouched," "unscathed," "unharmed," "undamaged," or "unspoiled." These antonyms imply that the item in question has not been altered or affected in any way, and there are no missing or broken pieces. Opposite adjectives to "picked pieces" would be "complete," "in one piece," "unimpaired," or "unaffected." The antonyms suggest that the item is in its original, pristine condition and has not been broken or altered by external forces.