From Longman Dictionary of Contemporary Englishsoft currencyˌsoft ˈcurrency noun [countable, uncountable] PECmoney of a particular country that may fall in value and is difficult to exchange for the money of a country that is economically stronger → hard currencyFrom Longman Business Dictionarysoft currencyˌsoft ˈcurrency (also weak currency) [countable, uncountable]FINANCE a currency that regularly loses value in relation to othersThe euro may be seen as a soft currency due to its use by countries with histories of high budget deficits and inflation. → currency