All the after-most part of the ship, is called the sterne (by a generall appellation) but most exactly considered, only the very outwardmost part abaft is the sterne;
Source: wiktionary
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Keep "aftermost" when the sentence already sounds natural, when a synonym would add unintended emphasis, or when readers need the most familiar wording. A synonym should clarify or sharpen the message, not simply make the sentence look more varied.
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Choose a synonym only if it keeps the core idea of "aftermost" intact in the sentence you are editing.
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6 total sentences available.
All the after-most part of the ship, is called the sterne (by a generall appellation) but most exactly considered, only the very outwardmost part abaft is the sterne;
Source: wiktionary
My station during the engagement was on the middle-deck, where I was quartered with another boy, to bring powder to the aftermost gun;
Source: wiktionary
[…] at night I slept on a blanket thrown on the deck boards at the aftermost end of the round-house, and right in the draught of the two doors.
Source: wiktionary
1653, Peter English, The Survey of Policy, Leith, Section 1, Subsection 1, p. 99, In this sense Aristotle’s words hold good, if he refer the former part of the fourth species to the after-most times and ultimat center of Heroicisme, and the latter part to the prior, though not to the first times thereof.
Source: wiktionary
Showing 4 of 6 available sentences.
Closest matches include aft, after, aftmost, back, backward.
Compare the replacement against real sentence context. This entry includes sample sentences so you can check tone, grammar, and meaning before swapping words.