Aftermost

1. (a. superl.) Hindmost; -- opposed to foremost.

2. (a. superl.) Nearest the stern; most aft.

Thesaurus Entries

abaft, after, aftermost, astern, back, backward, baft, fore and aft, hind, hinder, hindermost, hindhand, hindmost, posterior, postern, rear, rearmost, rearward, retrograde, tail