From Longman Dictionary of Contemporary Englishfeeble-mindedˌfeeble-ˈminded adjective 1 DECIDEstupid or not sensible a feeble-minded policy2 old useSTUPID/NOT INTELLIGENT having much less than average intelligence —feeble-mindedness noun [uncountable]
Examples from the Corpus
feeble-minded• All this is fine for the feeble-minded.• She must be very tired to give room to such feeble-minded notions. 