hindsight n. Understanding the nature of an event after it has happened; as, hindsight is always clearer than foresight.
20-20 hindsight, twenty-twenty hindsight Perfect understanding of an event after it has happened; a term usually used with sarcasm in response to criticism of one's decision, implying that the critic is unfairly judging the wisdom of the decision in light of information that was not available when the decision was made.
... forecastle of your third sentence? Have no fears. Your piece will be a Go. It will go out the back door on the first night. They've all done it —the 1364. So will 1365. Not one of us ever thought of the simple device of half-soling himself with a stove-lid. Ah, what suffering a little hindsight would have saved us. Treasure ... — Innocents abroad • Mark Twain
... settled—and hindsight being clearer than foresight—I had no difficulty in accounting for it. In order to lay a course and to keep it, the people in the boats would need precisely the things which had been carried off; and as each boat no doubt had been furnished so ... — In the Sargasso Sea - A Novel • Thomas A. Janvier
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