from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Subtle.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. subtle
from the GNU version of the Collaborative International Dictionary of English
- adj. Thin; not dense or gross; rare.
- adj. Delicately constituted or constructed; nice; fine; delicate; tenuous; finely woven.
- adj. Acute; piercing; searching.
- adj. Characterized by nicety of discrimination; discerning; delicate; refined; subtle.
- adj. Sly; artful; cunning; crafty; subtle
from The Century Dictionary and Cyclopedia
- Tenuous; thin; extremely fine; rare; rarefied: as, subtile vapor; subtile odors or effluvia; a subtile powder; a subtile medium. Also subtle.
- Delicately constituted, made, or formed; delicately constructed; thin; slender; fine; delicate; refined; dainty. Also subtle.
- Sharp; penetrating; piercing.
- Same as subtle, 3.
- Same as subtle, 4.
- Same as subtle, 5.
- Same as subtle, 7.
- To contrive or practise cunningly.
- To scheme or plan cunningly.
- To tamper; meddle.
Middle English, from Old French subtil, from Latin subtīlis, fine, delicate; see subtle.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin subtilis ("fine, thin, slender, delicate"), perhaps, from sub ("under") + tela ("a web, fabric"); see tela, toil. (Wiktionary)