"meaningless" in the adjective sense
1. meaningless, nonmeaningful
having no meaning or direction or purpose
"a meaningless endeavor"
"a meaningless life"
"a verbose but meaningless explanation"
2. futile, ineffectual, otiose, unavailing, meaningless
producing no result or effect
"a futile effort"
"the therapy was ineffectual"
"an otiose undertaking"
"an unavailing attempt"
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License