The antonym for "outstretching" can vary depending on the context in which it is used. However, some possible antonyms for "outstretching" include "folding," "retracting," "withdrawing," "bending," "shrinking," and "contracting." These words convey the opposite meaning of stretching out, indicating that something is moving towards its center or pulled back in. For example, when a person folds their arms, they are retracting and shortening the distance between their arms. Similarly, when a plant shrinks, it is contracting and withdrawing from its usual size. Antonyms for "outstretching" can help to broaden the vocabulary and add variety to one's communication.