Difference between Unimportant and Piffling

UNIMPORTANT vs PIFFLING: ADJECTIVE

Fiddling, Colorless, Little, Lilliputian, Piffling, Footling, Piddling, Petty, Indifferent, Picayune, Superficial, Immaterial, Trivial, Insignificant, Inconsequential

Daft, Paltry, Measly, Inconsiderable, Trifling, Fiddling, Lilliputian, Petty, Little, Unimportant, Niggling, Picayune, Trivial, Footling, Piddling

Fiddling, Colorless, Little, Lilliputian, Piffling, Footling, Piddling, Petty, Indifferent, Picayune, Superficial, Immaterial, Trivial, Insignificant, Inconsequential

Daft, Paltry, Measly, Inconsiderable, Trifling, Fiddling, Lilliputian, Petty, Little, Unimportant, Niggling, Picayune, Trivial, Footling, Piddling

But during that time it seems like unimportant.
For my purposes, the mathematical definition is unimportant.
Your idiosyncratic name is unimportant to the machine.
How comparatively unimportant that everything also be true.
The number one reason was frequent, unimportant posts.
Moderately serious Serious Wrong preposition Minor or unimportant Minor or unimportant e comparative rankings in Table illuminate some interesting findings.
The writer has left out many uninteresting and unimportant details, and even a few interesting yet unimportant details.
Circle one: Unimportant Slightly unimportant Undecided Slightly important Very important Are you currently in a relationship?
An understanding of the unimportant assumptions and why they are unimportant.
APPLICABLE UNIMPORTANT UNIMPORTANT TO ANSWER UNIMPORTANT UNIMPORTANT IMPORTANT IMPORTANT medical provider UNIMPORTANT UNIMPORTANT IMPORTANT SOMEWHAT NEUTRAL medical provider SOMEWHAT NEUTRAL UNIMPORTA

No one wants them to hinge on piffling technicalities, though New Zealand supporters might not see it that way on Sunday morning.
Care for chests in the pirate style with the rounded lid look a piffling tricky to make.