To perform an action unnecessarily is to do so without need or reason.
Example : "On the sunny day, she unnecessarily brought her umbrella."
sesquipedaliangrandstandingobfuscation
moving on ???
The word sesquipedalian means to use large words. Another word is verbose. Someone who uses unfamiliar words could be called pretentious.
Unnecessarily.
The second choice is the correct one. This is because the word "unnecessarily" is addressing the question of "how" the resources of the bank are being diverted, which requires an adverb, and "unnecessarily" is an adverb. (Note the "ly" at the end of the word). The word "unnecessary" is an adjective, which would be used to describe or modify a noun. For example, one could say that diversion of the bank's resources was unnecessary. In this case, "unnecessary" refers to and describes the word "diversion".
Jim measured the ruler unnecessarily because "12 inches" was written right on it.
When you come home late.///it is illegal to use the horn unnecessarily take it from there
People will continue to use and sell it illegally, and a lot of folks will go to jail unnecessarily.
That you do not prevent others from using their right to free speech and that you do not use it to defame others unnecessarily.
Unnecessarily nasty and evil.
The archive material suggests that in both countries the courts have been unnecessarily deferential in the face of public interest immunity claims from government.
Repetition of words is called "redundancy" or "repetition". It is the act of repeating a word or phrase unnecessarily, which can make the writing or speech less effective.