invisible

英 [ɪn'vɪzɪb(ə)l] 美[ɪn'vɪzəbl]

• adj. 无形的，看不见的；无形的；不显眼的，暗藏的

1. impossible or nearly impossible to see; imperceptible by the eye;

"the invisible man"

"invisible rays"

"an invisible hinge"

"invisible mending"

2. not prominent or readily noticeable;

"he pushed the string through an inconspicuous hole"

"the invisible man"