Meanings of slight lack in English

Don't you think I might be pardoned for a slight lack of concern?

There may be a slight lack of cooperation on the work front too.

The supporters of total abstinence nodded to each other, with a slight lack of spontaneity.

With a slight lack of originality Lombard asked:

Even that slight lack of robust colour he had remarked was not noticeable in the soft glow.

Perhaps there was a slight lack of smoothness over the temple; she touched the spot with her fingers.

For, if truth were told, in years past, his sister had sometimes shown a slight lack of respect in her manner towards him.

Apparently, it's due to a slight lack of sporting ecumenism from the Holy Ghost Fathers and a variation of the old street game principle.

The seams are overlock, rather than invisible, and you can spot a slight lack of refinement when you closely inspect them alongside the higher-end versions.

CAPRICORN (Dec. 22-Jan. 19): Yesterday's slight lack of cooperation may intensify, thanks to a shifting vibe, and this may become apparent on the work front.

There was never the slightest lack of candor or fairness in his methods.

Now, the slightest lack of harmony strikes me and pains me at the first glance.

And the slightest lack of preparation will spell disaster.

The slightest lack of self-possession on the part of the seconds is equivalent to a catastrophe.

The gentleman at once saw that Sabine had mentioned his name to the young artist, and with a slight lacking of generous feeling said,-