lesser, attrib.a.1Beag, mion. The lesser nobility, na mionuaisle. Astr: The Lesser Bear, An Béar Beag. Ph: Lesser calory, calra beag. 2(An ceann) is lú (de dhá cheann). The lesser part, an chaolchuid. To choose the lesser of two evils, rogha an dá dhíogha a thógáil.