The word "shortrange" implies a limited distance or capability. Its antonym, therefore, would be "long-range," which suggests a greater capacity and range. Long-range can refer to anything that has the ability or capability to reach farther, be it a weapon, communication signal, or a plan for the future. Other antonyms for "shortrange" could also include "far-reaching," "extensive," or "expansive," all of which connote a sense of greater scope or distance. Ultimately, the antonyms for "shortrange" are words that relate to larger distances or greater capacities, providing a stark contrast to the limited or confined connotations of the original word.