You searched for: “staidest”
staid (adjective); staider, staidest
Dignified and serious in habit or behavior, and even boring: Charles was considered to be a solemn and staid member of the company's administrative staff.

The politician had a staid manner when he was asked personal questions about his family.

This entry is located in the following unit: stato-, stat-, sta-, -static, -stasi, staso-, -stasis, -stasia, -stacy, -stitute, -stitution, -sist (page 17)