Adjective lidless has 3 senses
  1. lidless - not having or covered with a lid or lids; "a lidless container"
    Antonym:
    lidded
  2. lidless - having no lid; "a lidless container"
    Antonym:
    topped (indirect, via topless)
  3. lidless, sleepless - without having the eyes closed or covered by the eyelids; "to an eye like mine, a lidless watcher of the public weal"- Alfred Tennyson
    Antonym: unalert (indirect, via alert)
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