Definition of strait-laced adjective from the Oxford Advanced American Dictionary

 

strait-laced

 adjective
(also straight-laced)adjective
NAmE//ˌstreɪt ˈleɪst//
 
(disapproving)
 
jump to other results
having strict or old-fashioned ideas about people's moral behavior
See the Oxford Advanced Learner's Dictionary entry: strait-laced