Untransportable refers to something that cannot be moved from one place to another. Therefore, its antonyms consist of words that denote the exact opposite. Portable, transferable, movable, conveyable, transportable, and mobile are some antonyms for the word untransportable. Portable alludes to something that can be easily carried or moved, while transferable implies that something is capable of being transferred from one place to another. Movable denotes the capacity to be shifted from one place or position to another, and conveyable indicates that something can be transported from one place to another via a means of transportation. In contrast, transportable and mobile suggest that something can be transported from one place to another.