The negative form is unsuitable.
One suitable prefix for the word "treatment" is "mis-", which would change it to "mistreatment" to denote poor or unfair handling.
The prefix word for suitable is "in-".
I say one word
fine
The suitable suffix for the word "trouble" is "-some," forming the word "troublesome."
No, the word "say" has one syllable.
The new metal garage was a suitable replacement for the old wooden one. The town could not locate a suitable location for the new library.
To say the word "I" in French, one would say "je."
yes, and beehive is one word, you can say bee and you can say hive, but if you mean it as a bee's hive then it is one word
Advantageous, beneficial, in one's favour, suitable, promising, appropriate
The word "suitable" is an adjective. It describes a noun by indicating that something is appropriate or fitting for a particular purpose or situation.
An appropriate alternative word for medium is "intermediate."