A fine detail or distinction, especially one regarded as intricate or complex. The lawyer explained the legal niceties of the contract to her client.
A refined or elegant feature; a subtlety. The niceties of the painting were appreciated by art critics.
A delicate or careful consideration of etiquette or propriety. He was careful to observe the social niceties during the formal dinner.
Exactness or precision; the quality of being meticulously accurate. The instrument allowed the surgeon to perform the procedure with extraordinary nicety.