Ranked by relevance and common usage.
Keep "subtile" 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 "subtile" 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 "subtile", 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 "subtile" or choose a simpler alternative from the closest-match group.
3 total sentences available.
For wisedome which is the worker of all things, taught mee: for in her is an vnderstanding spirit holy, one onely, manifold, subtile, liuely, cleare, vndefiled, plaine, not subiect to hurt, louing the thing that is good, quicke, which cānot be letted, ready to do good: Kinde to man, stedfast, sure, free from care, hauing all power, ouerseeing all things, and going through all vnderstanding, pure, and most subtile spirits.
Source: wiktionary
And sometimes this perception, in some kind of bodies, is far more subtile than the sense; so that the sense is but a dull thing in comparison of it: we see a weather-glass will find the least difference of the weather, in heat, or cold, when men find it not.
Source: wiktionary
I burst into mirth at this—I liked him even better when he was subtile than when he was simple.
Source: wiktionary
Closest matches include acute, adulterated, air built, air-built, airy.
Compare the replacement against real sentence context. This entry includes sample sentences so you can check tone, grammar, and meaning before swapping words.