bold
"Shamed" is a 6 letter word that begins with s and is an antonym for bold :)
A 6-letter word beginning with 'a' that means smart is astute.
bold
There is not a specific word that is used to bold a number in a math equation. Generally, a number or letter is not bold in a math equation, if a letter is of significance, it is normally capitalized.
heroics
Bold
dauntless
Bolder lol
bold
SAFE
bland -or- plain