trifling vs holdup

trifling and holdup both are nouns.

Word	Noun	Adjective	Verb	Adverb
trifling	Yes	Yes	No	No
holdup	Yes	No	No	No

As nouns, holdup is a hypernym of trifling; that is, holdup is a word with a broader meaning than trifling:

trifling: the deliberate act of delaying and playing instead of working
holdup: the act of delaying; inactivity resulting in something being put off until a later time

Other hypernyms of trifling include delay.

trifling (noun)	holdup (noun)
the deliberate act of delaying and playing instead of working	robbery at gunpoint
	the act of delaying; inactivity resulting in something being put off until a later time

trifling (adjective)	holdup (adjective)
not worth considering