Meaningless means having no sense or purpose at all. A meaningless gesture, meaningless numbers, utterly meaningless.
It is used two ways: of something that cannot be understood, and of something that changes nothing, which is the sharper criticism. A meaningless statistic is one that has been measured accurately and tells you nothing.
1adjectivemeaninglessHaving no sense or purpose at all.
“Without any explanation, the numbers on the screen were meaningless to me.”
meaningless is a quality.
From meaning + -less.
Etymology from Wiktionary, CC BY-SA