trivial vs footling

trivial and footling both are adjectives.

Word	Noun	Adjective	Verb	Adverb
trivial	No	Yes	No	No
footling	No	Yes	No	No

As adjectives, trivial and footling are synonyms defined as:

Other synonyms of trivial include fiddling, lilliputian, little, niggling, petty, picayune, piddling, piffling.

trivial (adjective)	footling (adjective)
concerned with trivialities	(informal) small and of little importance
of little substance or significance
(informal) small and of little importance