We have understandable emotional responses to all these situations.
It was understandable on Morino's part, but it must have been miserable for everyone else concerned.
The two men and the fate of the parties they led are understandable only by regarding one as the leader of reaction, the other as in line with the American tendencies.
He teaches the medieval Platonic realism, but he accepts the Aristotelian philosophy of his day, marking off certain truths as proved and understood by the light of nature, and stamping those which are not so proved as not understood nor understandable, i.e.
Like most bugs it is totally understandable and, given hindsight, totally predictable.