work ‧ a ‧ day /ˈwɜːkədeɪ $ ˈwɜːr-/ BrE AmE adjective [only before noun]
[ Date: 1800-1900 ; Origin: workyday (16-19 centuries) , from workyday 'working day' (16-19 centuries) , from workeday (12-16 centuries) , from work + day ]
ordinary and not interesting SYN everyday :
He promised to tackle the workaday matters affecting people’s daily lives.