inane /ɪˈneɪn/adjective 2noun 1forms 5 adjective2 •Lacking sense or meaning, often to the point of boredom or annoyance.This supremely gifted kid told me that in the early elementary grades, the songs sung in music class were so inane that he wanted to skip grades already! Eventually he did, so better late than never. •Purposeless; pointless.Vague and inane instincts. — 1832 noun1 •That which is void or empty.The undistinguishable inane of infinite space. — 1689 formsinanes · inaner · more inane · inanest · most inane