Delicate discrimination (especially of aesthetic values). Synonyms:appreciation, discernment, taste."To ask at that particular time was the ultimate in bad taste"
3.
Perception of that which is obscure. Synonym:discernment.
4.
The quality of insight and sympathetic understanding.
... smilingly. He, listening, gazing at her, felt bitter. He had been mistaken. Well, he had found out his mistake, only just in time—only just. But even he, with all his observant perceptiveness, had failed ... — The Sign of the Spider • Bertram Mitford