3 adverbs to describe how to shuttered

Its lower part was so tightly shuttered and closed up that he decided at once it was an empty house.

On one side all the windows are continually shuttered, so as to prevent the mischievous action of stones, and in front the door is railed in closely so as to frustrate the efforts of those who might be inclined to kick it.

Anyone will know that when a lot of soldiers congregate in a place it is almost impossible to prevent someone or other being seen, or smoke from some fire showing, or, even worse, a light visible at night from some imperfectly shuttered house.

3 adverbs to describe how to  shuttered  - Adverbs for  shuttered