A person who lives upstream.

The condition of being upstream.

(idiomatic) To opt for a difficult course of action when a simpler or safer alternative is available; to make an unwise decision against sound advice.

simple past tense of swim upstream

Third-person singular simple present indicative form of swim upstream

present participle of swim upstream

(business, finance) A loan made to a parent company by one of its subsidiaries.

plural of upstream loan

past participle of swim upstream

In an upstream direction.