abstention UK /əbˈstɛn.ʃn̩/US /æbˈstɛn.ʃn̩/ noun4 •The act of abstaining or refraining (from). •The act of restraining oneself. •The act of declining to vote on a particular issue.There were five abstentions in the vote. •Non-participation in the political world; as a country avoiding international affairs. formsabstentions