unimpressive — having the ability to impress the mind; arousing admiration, awe, respect, etc.; moving; admirable: an impressive ceremony; an impressive appearance.
bad — If you say that it is bad that something happens, you mean it is unacceptable, unfortunate, or wrong.
dishonourable — showing lack of honor or integrity; ignoble; base; disgraceful; shameful: Cheating is dishonorable.
dishonorable — showing lack of honor or integrity; ignoble; base; disgraceful; shameful: Cheating is dishonorable.
inestimable — incapable of being estimated or assessed.
insignificant — unimportant, trifling, or petty: Omit the insignificant details.
poor — having little or no money, goods, or other means of support: a poor family living on welfare.
unworthy — not worthy; lacking worth or excellence.
