weariness vs senioritis

weariness and senioritis both are nouns.

Word	Noun	Adjective	Verb	Adverb
weariness	Yes	No	No	No
senioritis	Yes	No	No	No

As nouns, senioritis is a hyponym of weariness; that is, senioritis is a word with a more specific, narrower meaning than weariness:

weariness: temporary loss of strength and energy resulting from hard physical or mental work
senioritis: tiredness with the final year of high school

Other hyponyms of weariness include asthenopia, eyestrain, jet lag, exhaustion, grogginess, logginess, loginess.

weariness (noun)	senioritis (noun)
temporary loss of strength and energy resulting from hard physical or mental work	tiredness with the final year of high school