| Abaft 1. (prep.) Behind; toward the stern from; as, abaft the wheelhouse. 2. (adv.) Toward the stern; aft; as, to go abaft. Thesaurus Entries abaft, after, aftermost, astern, back, backward, baft, fore and aft, hind, hinder, hindermost, hindhand, hindmost, posterior, postern, rear, rearmost, rearward, retrograde, tail |