Contrary to its construction, inflammable does not mean "not flammable" : it means roughly the same thing. (able to burn)
The prefix non- is used to form nonflammable, which does mean "not flammable."
The prefix word for suitable is "in-".
The suitable prefix for advantage is "dis-".
A suitable prefix for "embarked" could be "re-" to create the word "reembarked."
the prefix di can be used or described as suitable and the prefix maybe can be used in divine.
unsuitable
Señor
A suitable word for the prefix "ambulation" could be "walk."
One suitable prefix for the word "treatment" is "mis-", which would change it to "mistreatment" to denote poor or unfair handling.
The suitable suffix for respect would be "ful," making it respectful.
suffix of suit
fore-
non zero