alert vs energetic

alert is a noun but energetic is not a noun.

Word	Noun	Adjective	Verb	Adverb
alert	Yes	Yes	Yes	No
energetic	No	Yes	No	No

alert (noun)	energetic (noun)
a warning serves to make you more alert to danger
an automatic signal (usually a sound) warning of danger
condition of heightened watchfulness or preparation for action

alert (adjective)	energetic (adjective)
engaged in or accustomed to close observation	possessing or exerting or displaying energy
mentally perceptive and responsive	working hard to promote an enterprise
quick and energetic

alert (verb)	energetic (verb)
warn or arouse to a sense of danger or call to a state of preparedness