Someone who is cute, in a sorta indie-rock way. Look at basically anyone in The Naked and Famous for an example. Wearing skinny jeans does not guarantee indorable-ness. Alternatively "indiedorable".
Unable to be successfully stopped. A force so overwhelming that crushes all resistance. A Force that cannot be separated by the intended action unlike unstoppable which can fail, Instopable has a 100% success rate.
"The irony is that the reported damage by this instopable (as in indivisible) penetration by this class of high calliber military grade round was even questioned by ballistic experts." The round and it's intended damage are one in the same. Instopable!