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

2 senses of mindlessness

Sense 1
inanity, senselessness, mindlessness, vacuity, pointlessness -- (total lack of meaning or ideas)
       => meaninglessness -- (the quality of having no value or significance; "he resented the meaninglessness of the tasks they assigned him")

Sense 2
heedlessness, mindlessness, rashness -- (the trait of acting rashly and without prudence)
       => imprudence -- (a lack of caution in practical affairs)