Ranked by relevance and common usage.
Keep "effulgent" 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 "effulgent" 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 "effulgent", 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 "effulgent" or choose a simpler alternative from the closest-match group.
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
9 total sentences available.
Thus all day long the full-diſtended clouds / Indulge their genial ſtores, and well-ſhower'd earth / Is deep enrich'd with vegetable life; / Till, in the weſtern ſky, the downward ſun / Looks out, effulgent, from amid the fluſh / Of broken clouds, gay-ſhifting to his beam.
Source: wiktionary
That effulgent power, which governs our intellects, is the primitive element of water, the luſtre of gems and other glittering ſubſtances, the favour of trees and herbs, the thinking ſoul of living beings; [...] The ſupreme Brahme, ſo manifeſted, illumines the ſeven worlds; may he unite my ſoul to his own radiance (that is, to his own ſoul, which reſides effulgent in the ſeventh world, or manſion of truth).
Source: wiktionary
I also, this morning, gave attention to the stars as seen through the Zodiacal Light, and found, even to 4ʰ 30ᵐ, when the effulgent Light below the zigzag lines is very strong, that with the naked eye I could readily make out stars of the 6th magnitude within the effulgent Light; [...]
Source: wiktionary
Margaret, aged six, entered her kindergarten after many days' absence, with so effulgent a face as must kindle curiosity in the dullest.
Source: wiktionary
Showing 4 of 9 available sentences.
Closest matches include radiant, alight, beaming, beamy, blinding.
Compare the replacement against real sentence context. This entry includes sample sentences so you can check tone, grammar, and meaning before swapping words.