Difference between Fatuous and Inane

FATUOUS vs INANE: NOUN

Complacently or inanely foolish
Lacking sense or substance.
Without contents; empty; void of sense or intelligence; purposeless; pointless; characterless; useless.
Lacking sense or meaning (often implying, "to the point of boredom or annoyance").
Devoid of intelligence

Foolish; foolishly conceited; feebly or stupidly self-sufficient; unconsciously silly: applied both to persons and to their acts.
Idiotic; demented; imbecile.
Unreal; illusory, like the ignis fatuus.
Extremely silly or stupid

Vapid, Moronic, Risible, Preposterous, Puerile, Absurd, Ludicrous, Nonsensical, Idiotic, Stupide, Foolish, Mindless, Asinine, Inane, Vacuous

Meaningless, Stupid, Pointless, Ridiculous, Absurd, Witless, Silly, Vapid, Idiotic, Nonsensical, Foolish, Mindless, Fatuous, Asinine, Vacuous

Vapid, Moronic, Risible, Preposterous, Puerile, Absurd, Ludicrous, Nonsensical, Idiotic, Stupide, Foolish, Mindless, Asinine, Inane, Vacuous

Meaningless, Stupid, Pointless, Ridiculous, Absurd, Witless, Silly, Vapid, Idiotic, Nonsensical, Foolish, Mindless, Fatuous, Asinine, Vacuous

Its fatuous little light will be assuredly the last to leave them always assuming they are darkward bound.
It is fatuous to say they are not forced to accept government funds.
That is the most fatuous of many such remarks I have heard at Academy meetings.
Speaking of rank, can you recall the classic film that featured a fatuous Lt.
He made the fatuous promise to freeze energy prices if elected in 2015.
But piously repeating yourself, without support for your idea, sounds fatuous.
He is far too intelligent to utter such fatuous remarks.
Just maybe, I was replying to Annoyme's fatuous claim.
His arguments really are so presumptuous, convenient, vague and fatuous.
These adamant defenses of tepid democracy are not fatuous.

TV, saw Margery Evans spouting that inane defense of Harold.
Jette to be a jerk, stop whining about inane things.
We think the likely answer to this clue is INANE.
Web is inane or insane, confused, badlywritten, tendentious, and inaccurate.
SSL certificates, so maybe this is an inane question.
Matter, and makes excursions into that incomprehensible Inane.
Undertake some inane romantic quest in my name.
And the myriad of other inane embarassing things?
Johnson said some inane shit about climate change?
Hello, I saw your informative post and then marveled the inane comments, so I feel compelled to leave an inane comment as well.