Holmes had picked up the powerful air-gun from the floor, and was examining its mechanism. "An admirable and unique weapon," said he, "noiseless and of tremendous power."
Source: tatoeba (7453259)
Ranked by relevance and common usage.
Keep "noiseless" 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 "noiseless" 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 "noiseless", 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 "noiseless" or choose a simpler alternative from the closest-match group.
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
24 translations across 16 languages.
5 total sentences available.
Holmes had picked up the powerful air-gun from the floor, and was examining its mechanism. "An admirable and unique weapon," said he, "noiseless and of tremendous power."
Source: tatoeba (7453259)
Walking somewhat slowly by reason of his concentration, the boy—an ancient man in some phases of thought, much younger than his years in others—was overtaken by a light-footed pedestrian, whom, notwithstanding the gloom, he could perceive to be wearing an extraordinarily tall hat, a swallow-tailed coat, and a watch-chain that danced madly and threw around scintillations of sky-light as its owner swung along upon a pair of thin legs and noiseless boots.
Source: tatoeba (11477409)
The movements of the cat were noiseless as it approached the mousehole.
Source: wiktionary
For by the hearth the children sit Cold in that atmosphere of Death, And scarce endure to draw the breath, Or like to noiseless phantoms flit: But open converse is there none, […]
Source: wiktionary
Showing 4 of 5 available sentences.
Closest matches include be quiet, damped, dampened, deadened, echoless.
Compare the replacement against real sentence context. This entry includes sample sentences so you can check tone, grammar, and meaning before swapping words.