Etymology
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swim + -able
Adjective
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swimmable (comparative more swimmable, superlative most swimmable)
- (of a body of water) Able to be swum in or across
2007 January 30, Anahad O’Connor, “Looking to the Hudson for Rockland’s Water Needs”, in New York Times[1]:Those efforts have helped the Hudson inch closer to the healthy, swimmable river that it was before industry sprouted along its banks.