lightmindedness

It would be unpardonable, lightmindedness to believe that such a state of affairs could persist indefinitely in the future.

GORBACHEV SPEAKS TO ANPP 1989

'Is such foolery and lightmindedness fit for our abbey?

The Sanctuary Sparrow Peters, Ellis, 1913-1995 1983

They put away all the softness and lightmindedness of women, and inured their womanish spirit to masculine ruthlessness.

The Danish History, Books I-IX Grammaticus Saxo

Nathless, firm, though deeply courteous, rebuke, for his sometimes overmuch lightmindedness, was administered to him by the more grave and thoughtful Byron.

On the Old Road, Vol. 2 (of 2) A Collection of Miscellaneous Essays and Articles on Art and Literature John Ruskin 1859

The crew gaze in pardonable admiration, but the hero, in a long speech, reproves them for their lightmindedness, reminds them of their sacred mission, and informs them that,

Alton Locke, Tailor and Poet An Autobiography Charles Kingsley 1847

Take a purge, Monsieur; then you will be lighter than lightmindedness itself. "

Historical Miniatures August Strindberg 1880

To own the truth to you, Deerslayer, I should have married the gal two years since, if it had not been for two particular things, one of which was this very lightmindedness. "

The Deerslayer James Fenimore Cooper 1820