Impalpable

(adj.) imperceptible to the senses or the mind; 'an impalpable cloud'; 'impalpable shadows'; 'impalpable distinctions'; 'as impalpable as a dream' .

(adj.) not perceptible to the touch; 'an impalpable pulse' .

佛瑞德整理

• There had never been more than a little impalpable barrier between them--and yet he had suffered it to keep them apart! 伊迪丝·华顿. 快乐之家.
• He stood looking down on the sleeping face which seemed to lie like a delicate impalpable mask over the living lineaments he had known. 伊迪丝·华顿. 快乐之家.

校对:马尔科姆