lidless

adjectives

not having or covered with a lid or lids
"a lidless container"
lidless
antonym
lidded
having no lid
"a lidless container"
lidless
is similar to
having no top
"a topless jar"
topless
always watchful
"to an eye like mine, a lidless watcher of the public weal"- Alfred Tennyson
lidless, sleepless