Outstretching refers to extending or stretching something outwards beyond its usual position or limit. There are several synonyms for this word that can be used according to the context in which it is being used. The first synonym for outstretching is expanding, which means to make something larger or wider than its usual size. Another synonym is elongating, which refers to stretching or lengthening something. The word prolonging can also be used, which signifies extending or lengthening the duration of something. Similarly, the word stretching can be used to mean outstretching something. In summary, these synonyms can be used interchangeably to describe outstretching depending on the appropriate usage.