From Longman Dictionary of Contemporary Englishtalk somebody/something ↔ down phrasal verb1 CRITICIZE British English to make something seem less successful, interesting, good etc than it really is the pessimists who are talking down Britain2 TTAto help a pilot land an aircraft by giving them instructions from the ground by radio → talk→ See Verb table
Examples from the Corpus
talk down• It was also a clear attempt to talk Britain down.• Stoke themselves have had no contact from celtic since last Wednesday when compensation talks broke down.• That surprised everybody, since the administration has lately tried to talk the dollar down.• He liked having the last word, and with Carol he often got it if he talked himself down a little.• Billy and the girl had climbed around to the bow and were talking and looking down in the water.• Their shares rallied after federal budget talks broke down in Washington, D.• Those talks broke down last July. 