Ranked by relevance and common usage.
Keep "indefinable" 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 "indefinable" 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 "indefinable", 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 "indefinable" or choose a simpler alternative from the closest-match group.
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
6 total sentences available.
It was in mid-summer, when the alchemy of Nature transmutes the sylvan landscape to one vivid and almost homogeneous mass of green; when the senses are well-nigh intoxicated with the surging seas of moist verdure and the subtly indefinable odours of the soil and the vegetation.
Source: tatoeba (5749611)
What I’m getting at is that Zamenhof not only built a linguistic object, but that behind that was an idea — an idea of brotherhood, a pacifist idea. That strength of an ideal — for which Esperantists were even persecuted under Nazism and Stalinism — is still conserved by the community of Esperantists. One cannot say that it has failed, but one thing needs to be said: the reason why any language is successful is always indefinable.
Source: tatoeba (8081220)
Love gives sensations that are often indefinable.
Source: tatoeba (10651133)
African tourism is changing, say travel industry leaders, moving away from the traditional safaris and packaged tours and towards the intimate, indefinable, infinitely Instagrammable lure of “experiences.”
Source: tatoeba (11820466)
Showing 4 of 6 available sentences.
Closest matches include ineffable, undefinable, aleatoric, aleatory, ambiguous.
Compare the replacement against real sentence context. This entry includes sample sentences so you can check tone, grammar, and meaning before swapping words.