Primly
In a stiff manner.
It would translate to mean stiff behavior or manners. You can try saying Use the word decorous just as you would use the word 'proper' "Members of the diplomatic corps are expected to behave in a stiffly decorous manner."
John stiffly sat next to me.
No, the word 'stiffly' is not a noun at all.The word 'stiffly' is the adverb form of the adjective 'stiff'.The noun form of the adjective stiff is stiffness, a concrete noun, a word for a physical quality.
The correct spelling of the adverb is "professionally" (in a correct or competent manner).
wavy
Yes, it is correct to say "Getting this done in a timely manner" if you want to express the need for something to be completed promptly.
The correct meaning for research is "an attempt to find out in a systematically and scientific manner"
That is the correct spelling of the adverb "similarly" (in a like manner).
Will you ask this question in the correct manner?
That is the correct spelling of "adversely" (in an opposing manner).
That is the correct spelling of "passively" (in an indirect way, or in a deferential manner).