Main entry: lidless
Definition: not having or covered with a lid or lids
Usage: a lidless container
Antonyms: lidded
Definition: having or covered with a lid or lids; often used in combination
Main entry: sleepless, lidless
Definition: always watchful
Usage: to an eye like mine, a lidless watcher of the public weal- Alfred Tennyson
Antonyms: unvigilant, unwatchful, unalert
Definition: not alert to what is potentially dangerous
Main entry: lidless
Definition: having no lid
Usage: a lidless container
Antonyms: topped
Definition: having a top of a specified character