utility vs useless

utility is a noun but useless is not a noun.

Word	Noun	Adjective	Verb	Adverb
utility	Yes	Yes	No	No
useless	No	Yes	No	No

utility (noun)	useless (noun)
the service (electric power or water or transportation) provided by a public utility
a facility composed of one or more pieces of equipment connected to or part of a structure and designed to provide a service such as heat or electricity or water or sewage disposal
the quality of being of practical use
(computer science) a program designed for general support of the processes of a computer
a company that performs a public service; subject to government regulation
(economics) a measure that is to be maximized in any situation involving choice

utility (adjective)	useless (adjective)
used of beef; usable but inferior	having no beneficial use or incapable of functioning usefully
capable of substituting in any of several positions on a team