From Longman Dictionary of Contemporary Englishdim recollection/awareness etcdim recollection/awareness etcREMEMBER#a memory or understanding of something that is not clear in your mind SYN vague Laura had a dim recollection of someone telling her this before. → dim
Examples from the Corpus
dim recollection/awareness etc• My dim recollection was that there was discussion of such questions in Mary Shelley's novel. 