Scientists in the U.S. and Australia are using new devices, experimental bionic eyes, to help bring sight to the sightless. It uses similar technology to cochlear implants that have been helping people hear for decades.
Source: tatoeba (12119998)
Ranked by relevance and common usage.
Keep "sightless" 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 "sightless" 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 "sightless", 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 "sightless" or choose a simpler alternative from the closest-match group.
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
4 total sentences available.
Scientists in the U.S. and Australia are using new devices, experimental bionic eyes, to help bring sight to the sightless. It uses similar technology to cochlear implants that have been helping people hear for decades.
Source: tatoeba (12119998)
And yet it was possible he might love her—love her truly and deeply: if so, of what avail would it be to lower him in her esteem? It were best for Lucy still to gaze with sightless eyes on her idol.
Source: wiktionary
In his return, arriving at a rising ground, a knoll, he heard a rustling of the leaves in his front: an enemy was suspected ; he gathered his men around him, each taking his tree. The enemy was sightless to Boyd, and his party, yet the approach around him was sensible to every one.
Source: wiktionary
The toiling world is sightless to those who cannot see.
Source: wiktionary
Closest matches include unseeing, ableptical, amaurotic, behind the curtain, behind the scenes.
Compare the replacement against real sentence context. This entry includes sample sentences so you can check tone, grammar, and meaning before swapping words.