Meanings of inane laugh in English

He laughed his own quaint and inane laugh and added apologetically:

A long, jovial, inane laugh broke the sudden silence which had fallen over everyone.

Then he again turned with an inane laugh to Chauvelin,-

He had heard a faint echo of that inane laugh which grated upon his nerves.

Blakeney, with his most inane laugh and pleasant good-nature, was solemnly patting him on the back.

But he took my hand and said, with that same quaint, somewhat inane laugh which was so characteristic of him:

And he laughed that funny, somewhat inane laugh of his, which had deceived the clever men of two countries as to his real personality.

He laughed his own pleasant and inane laugh, and burying his slender, long hands into the capacious pockets of his overcoat, he said leisurely-

"Here I am, friend," he said with his funny, inane laugh, "all alive!

"Yet, 'tis simple enough, m'dear," he said with that funny, half-shy, half- inane laugh of his, "you see!