or straight-laced(strāt′lāst′)adj.1. Excessively strict in behavior, morality, or opinions.2. Having or wearing a tightly laced garment.[strait, tightly (obsolete) + -laced (from lace).]strait′-lac′ed·ly(-lā′sĭd-lē, -lāst′lē) adv.strait′-lac′ed·ness n.
strait-lacedly
(ˌstreɪtˈleɪsɪdlɪ) or
straight-lacedly
advin a strait-laced mannerThesaurusSeestrait-laced