1. superlative form of blouse; most resembling or characteristic of a blouse; loose and flowing in fit
Usage: informal; typically used to describe clothing that is baggy or has a blouse-like appearance
2. superlative form of blousy; most untidy, ruddy-faced, or slovenly in appearance
Usage: informal; chiefly British; dated

Examples

• The blousiest style in the collection featured oversized sleeves and a relaxed silhouette.
• She preferred the blousiest fit because it was more comfortable for everyday wear.
• Among all the designs, that one was the blousiest, with fabric that draped loosely.
• The blousiest appearance of the group made her stand out at the formal event.
• He chose the blousiest shirt from the rack, not caring much about a tailored look.