Subtle means so slight that you almost miss it. A hint of lemon under the sauce, the change of colour in the sky before rain, the small pause someone leaves before they answer.
The b is silent, so say it suttle, and the adverb drops the e: subtly, never subtlely. The noun is subtlety. The second sense is about cleverness rather than faintness: a subtle argument, a subtle plan, a player who wins by small moves instead of force. Used of a person it is praise for working indirectly, and not very subtle is the polite way of saying someone was obvious about it. Subtle is never loud, so keep it away from anything strong: a subtle smell is faint, not powerful.
1adjectivesubtleSo slight or delicate that it is easy to miss.~50%
“There was a subtle difference between the two recordings.”
2adjectivetasteClever and indirect, working by small careful steps rather than force.~50%
“It was a subtle way of telling him to leave.”
synonyms: ingenious, artful
Shares are an estimate: a language model read 10 sentences found in the wild and placed 6 of them on a sense (4 were unclear) — a count of our sample, not a measurement of English.
The Latin behind it is a web made so fine you look through it and see nothing. The b comes from that web, and English keeps writing it and never says it.
hooks ontoweb
Subtle comes through Old French and Anglo-Norman from Latin subtilis, fine or delicate, which was built from sub, under, and tela, the warp, the threads running lengthwise in a loom. Something subtilis was finely woven, thread passing under thread. English kept the fineness and turned it into a difference you can hardly see.
Proto-Indo-European
*tetḱ- — to create, produce; to cut, hew
Latin
subtīlis — of texture: delicate, fine; slender, thin; accurate, keen; having fine judgment; etc.
Old French
sotil
Middle French
soutil
Anglo-Norman
sotel
Middle English
sotil
English, today
subtle
Built from
The is derived from Middle English sotil, soubtil, subtil (“of a person, the mind, etc.: clever, ingenious, penetrating; cunning, sly; insidious; delicate, fine; not dense, light, thin; finely powdered; narrow, slender; etc.”), borrowed from Anglo-Norman sotel, subtil, sutil, Middle French soutil, subtil, sutil, and Old French sotil, soutil, subtil, sutil (“of an object: skilfully designed or made; delicate, fine; slender, thin; of an intangible thing: difficult to understand; of a person: discerning, shrewd; devious, sly; etc.”) (modern French subtil), from Latin subtīlis (“of texture: delicate, fine; slender, thin; accurate, keen; having fine judgment; etc.”), from sub (“below, under”) + tēla (“warp (threads running lengthwise in a loom); web”) (ultimately from Proto-Indo-European tetḱ- (“to create, produce; to cut, hew”), from teḱ- (“to beget, sire”)). The word displaced Old English smēag literally “creeping”. The modern and Middle English (and French) spellings with -b- are influenced by Latin subtīlis; the letter was probably never pronounced. The is derived from Middle English sotil, soubtil, subtil (“wise person; sophisticated people collectively”), from the adjective.
Etymology from Wiktionary, CC BY-SA