Definition

1. Verb (transitive):

   • To make (something, especially the senses or the mind) more keen, acute, refined, or subtle.
   • To refine or purify an argument, idea, or distinction to a very fine point.

2. Verb (intransitive, rare):

   • To become more subtle or refined.

Usage

• Transitive verb: The object is the thing being made more acute or refined (e.g., the senses, perception, an argument).
• Intransitive verb: Used without a direct object to describe the process of becoming more subtle.

Examples

• Transitive use:
  • The philosopher sought to subtilise his students' understanding of ethical dilemmas.
  • Meditation can subtilise one's awareness of internal bodily sensations.
• Intransitive use (rare):
  • Over centuries, the ritual's form has subtilised into a more symbolic practice.

Advanced Usage

• In philosophical or critical discourse: Often used to describe the act of making a conceptual distinction extremely fine or nuanced.
  • Her thesis subtilises the difference between influence and inspiration.
• In a negative or critical sense: Can imply excessive or overly fine distinction.
  • He subtilises the argument to the point where its practical application is lost.

Variants and Related Words

• Subtilize: The more common spelling, especially in American English. It shares identical definitions with 'subtilise'.
• Subtilization (noun): The act or process of making something subtle.
  • The subtilization of scent in perfumery is a true art.

Synonyms

• Sharpen: To make more acute (often for senses or intellect).
• Refine: To improve by making small changes; to purify.
• Hone: To refine or perfect (a skill) over time.
• Acute (as a verb, though rare): To sharpen.

Antonyms

• Coarsen: To make less subtle or refined.
• Blunt: To make less sharp or keen.
• Oversimplify: To simplify to the point of error, ignoring nuance.

Notes

• Spelling: 'Subtilise' is the chiefly British English spelling. The 'z' spelling ('subtilize') is standard in American English and is more frequent in general use.
• Rarity: This is a relatively rare and formal word, most often encountered in academic, literary, or philosophical contexts.

Verb

1. make (senses) more keen