Breadcrumb Home > Thesaurus > O Synonyms of oceanaut Find synonyms for: Noun1. aquanaut, oceanaut, skilled worker, trained worker, skilled workmanusage: a skilled worker who can live in underwater installations and participate in scientific researchWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of oceanaut (Dictionary) ✖ Related Content Daily Word Quiz: prandial Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language