Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun subtlety
2 senses of subtlety
Sense 1
nuance, nicety, shade, subtlety, refinement -- (a subtle difference in meaning or opinion or attitude; "without understanding the finer nuances you can't enjoy the humor"; "don't argue about shades of meaning")
=> meaning, significance, signification, import -- (the message that is intended or expressed or signified; "what is the meaning of this sentence"; "the significance of a red traffic light"; "the signification of Chinese characters"; "the import of his announcement was ambiguous")
Sense 2
subtlety, niceness -- (the quality of being difficult to detect or analyze; "you had to admire the subtlety of the distinctions he drew")
=> difficulty, difficultness -- (the quality of being difficult; "they agreed about the difficulty of the climb")