When subtle came to first be used in Middle English its meaning was very much in this same lineage. It meant "perceptive, refined," and was used to describe people known for their clear thinking—such as …

SUBTLE definition: thin, tenuous, or rarefied, as a fluid or an odor. See examples of subtle used in a sentence.

SUBTLE definition: 1. not loud, bright, noticeable, or obvious in any way: 2. small but important: 3. achieved in a…. Learn more.

difficult to detect or analyse, often through being delicate or highly refined: a subtle scent showing or making or capable of showing or making fine distinctions of meaning

Jan 20, 2026 · Adjective subtle (comparative subtler or more subtle, superlative subtlest or most subtle) Senses relating to tangible things. Of an action or movement: very delicate or slight, and thus barely …

There are 25 meanings listed in OED's entry for the word subtle, five of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Definition of subtle adjective from the Oxford Advanced Learner's Dictionary. (often approving) not very obvious or easy to notice. There are subtle differences between the two versions. The fragrance is a …

Define subtle. subtle synonyms, subtle pronunciation, subtle translation, English dictionary definition of subtle. adj. sub·tler , sub·tlest 1. a. So slight as to be difficult to detect or describe; elusive: a subtle …

Something that is subtle is not immediately obvious or noticeable. ...the slow and subtle changes that take place in all living things. Intolerance can take subtler forms too.

Something that is subtle is not obvious: a professional food taster might be able to perceive subtle differences of flavor that most people don't notice.