1. to make subtle distinctions or engage in refined reasoning
Usage: formal; somewhat archaic
2. to make thin, tenuous, or less dense
Usage: archaic; technical

Examples

• The philosopher continued to subtilize his argument with ever finer distinctions.
• She would subtilize every point until the main issue became obscured.
• The medieval scholars loved to subtilize theological questions.
• Heat will subtilize the vapor, making it less visible.
• The alchemist believed he could subtilize base metals into gold.
• Don’t subtilize the problem—keep your explanation simple.