Antonyms of noun meaninglessness

1 of 2 senses of meaninglessness

Sense 2
meaninglessness -- (the quality of having no value or significance; "he resented the meaninglessness of the tasks they assigned him")
       Antonym of meaningfulness (Sense 1)
      => meaningfulness -- (the quality of having great value or significance)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun meaninglessness

2 senses of meaninglessness

Sense 1
nonsense, bunk, nonsensicality, meaninglessness, hokum -- (a message that seems to convey no meaning)
       => message, content, subject matter, substance -- (what a communication that is about something is about)

Sense 2
meaninglessness -- (the quality of having no value or significance; "he resented the meaninglessness of the tasks they assigned him")
       => insignificance -- (the quality of having little or no significance)