1. lidless - Adjective
2. lidless - Adjective Satellite
Having no lid, or not covered with the lids, as the eyes; hence, sleepless; watchful.
Source: Webster's dictionaryto an eye like mine, a lidless watcher of the public weal Source: Internet
a lidless container Source: Internet
He cites many examples in The Lord of the Rings, such as Sauron's "Lidless Eye": "the black slit of its pupil opened on a pit, a window into nothing". Source: Internet