From Longman Dictionary of Contemporary Englishmental blockmental blockFORGETUNDERSTANDa difficulty in remembering something or in understanding something I got a complete mental block as soon as the interviewer asked me a question. → mental
Examples from the Corpus
mental block• With the uh, mental block.• She developed a complete mental block against her pregnancy, and concealed it until four days before she went into labour.• Beware of becoming so fixated on this one position that you acquire a mental block against progressing further.• Most of the blocks mentioned here are at the physical level, but the emotional and mental blocks are equally important.• Spring focus: 2B Chuck Knoblauch claims he received help during the offseason with his mental block on routine throws.• Their mocking faces caused a mental block - or a block somewhere else. 