Christopher Columbus's secret love letters to Queen Isabella - undiscovered for centuries - have been rumored to rival, if not surpass, the Kama Sutra.
Source: tatoeba (780188)
Ranked by relevance and common usage.
Keep "undiscovered" 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 "undiscovered" 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 "undiscovered", 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 "undiscovered" or choose a simpler alternative from the closest-match group.
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11 total sentences available.
Christopher Columbus's secret love letters to Queen Isabella - undiscovered for centuries - have been rumored to rival, if not surpass, the Kama Sutra.
Source: tatoeba (780188)
While still an undergraduate, Adams performed an investigation to try to explain the reason for the irregularities in the motion of the planet Uranus. He theorized that the unexpected planetary orbit could be due to the presence of an as yet undiscovered planet.
Source: tatoeba (3958488)
I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the seashore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me.
Source: tatoeba (5744023)
In the year 2050, the feces of undiscovered aboriginal tribes will be the most valuable resource in the world.
Source: tatoeba (6467795)
Showing 4 of 11 available sentences.
Closest matches include able, enigmatic, go unseen, hidden, hidden talent.
Compare the replacement against real sentence context. This entry includes sample sentences so you can check tone, grammar, and meaning before swapping words.