lax /læks/ BrE AmE adjective
[ Date: 1300-1400 ; Language: Latin ; Origin: laxus 'loose' ]
not strict or careful enough about standards of behaviour, work, safety etc SYN slack
lax in (doing) something
The company has been lax in carrying out its duties.
lax security
—laxity ( also laxness ) noun [uncountable]