1) Airy 2) Asinine 3) Empty 4) Fatuous 5) Foolish 6) Inane 7) Meaningless 8) Mindless 9) Nonmeaningful 1) Asinine 2) Devoid of intelligence 3) Devoid of matter 4) Empty 5) Empty-headed 6) Fatuous 7) Foolish 8) Inane 9) Mindless 10) Void of expression 
• (a.) Empty; unfilled; void; vacant.
vacuous 1. Devoid of matter; empty; vacant, blank, void. 2. Lacking intelligence; stupid. 3. Devoid of substance or meaning; inane. 4. Devoid of expression; vacant.
adjective void of expression; `a blank stare` adjective devoid of matter; ` a vacuous space`
[SAT terms] devoid of intelligence