Ranked by relevance and common usage.
Keep "unsufferable" 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.
If two options seem close, choose the one that best matches the audience and purpose of the sentence.
Choose a synonym only if it keeps the core idea of "unsufferable" intact in the sentence you are editing.
Check whether the replacement sounds more formal, casual, emotional, technical, or forceful than the original word.
Read the full sentence after the swap. Keep the synonym only when the sentence becomes clearer or more precise.
Review note: Synonym lists are ranked with lexical data and reviewed for practical writing value. Use the comparison notes, sentence evidence, and source labels together; a high-ranking synonym can still be wrong when the audience, register, or grammar changes.
After choosing a replacement for "unsufferable", read the sentence once for meaning and once for rhythm. The best synonym should feel natural in the full sentence, not only accurate in a word list.
If the synonym makes the sentence slower, vaguer, or more dramatic than intended, keep "unsufferable" or choose a simpler alternative from the closest-match group.
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
5 total sentences available.
The heate of this place is wonderfull; the earth itselfe being almost unsufferable, and which the subterranean fires have made so hollow, by having wasted the matter for so many years, that it sounds like a drum to those who walke upon it […]
Source: wiktionary
[T]his Comparison of a Point in Geometry with Unity in Arithmetic is of all the most unsufferable, and derives the worst Consequences upon Mathematical Learning.
Source: wiktionary
[W]hilſt he heſitated there, the criſis of pleaſure overtook him, and the cloſe compreſſure of the vvarm ſurrounding fold, drevv from him the extatic guſh, even before mine vvas ready to meet it, kept up by the pain I had endur'd in the courſe of the engagement, from the unſufferable ſize of his vveapon, tho' it vvas not as yet in above half its length.
Source: wiktionary
It is possible that these expressions of God's covering Moses with his hand while the glory of God past by, and Moses seeing the back parts of God, may signify no more than this, that in this particular appearance of God he arrayed himself in beams of light of such unsufferable splendor, that it would have destroyed the body of Moses had not God sheltered and protected him […]
Source: wiktionary
Showing 4 of 5 available sentences.
Closest matches include insufferable.
Compare the replacement against real sentence context. This entry includes sample sentences so you can check tone, grammar, and meaning before swapping words.