IPA: /ˈstreɪtˌleɪs.nəs/
KK: /ˈstreɪtˌleɪs.nəs/
The quality of being very strict in moral or social standards, often to the point of being overly rigid or conservative.
Her straitlacedness made it difficult for her to enjoy the more relaxed atmosphere of the party.
Straitlacedness is formed from "strait" (from Old English *streht*, meaning narrow or tight) and "laced" (from the verb "lace", meaning to fasten or tie). The suffix "-ness" (meaning the state or quality of) indicates the condition of being straitlaced. Thus, straitlacedness refers to the quality of being narrow-minded or excessively strict in moral or social standards.
Think of being 'tight' ('strait') and 'fastened' ('laced') to remember that straitlacedness means having a strict or narrow mindset.
No commonly confused words.