Definition from Wiktionary, the free dictionary
half; semi-; incomplete; (after a number) and a half; half
|(a measure word, for sentences or lines of verse); sentence||
many; much; a lot of; numerous; multi-
話不投機半句多 (traditional, Pinyin 话不投机半句多), simplified
- When the conversation is not congenial, to say even half a sentence is too much.