not that

not (all) that (good, bad, well, poor, etc.)

Not especially or particularly (good, bad, etc.), especially compared to what one expected or hoped. The movie wasn't all that bad—you were making out like it was the worst thing in the world! I'm sorry to say this meal is not that good.
See also: not, that

not that

1. Although it isn't the case that. Not that I expect you to know the answer to this, but why do you think Mom ever married Dad to begin with? My husband watches a lot of trashy TV at night—not that I don't have my guilty pleasures, too, mind you.
2. Not very. It's a beautiful restaurant, but the food wasn't that good. He's not really that arrogant; it's just an act.
See also: not, that

ˈnot that

used to state that you are not suggesting something: She hasn’t written — not that she said she would.
See also: not, that
References in classic literature ?
Is not that true, Meletus, of horses, or of any other animals?
And this is because injustice creates divisions and hatreds and fighting, and justice imparts harmony and friendship; is not that true, Thrasymachus?
Most likely not; but I am not going to descant upon them now: I will only make this acknowledgment, little honourable as it may be to human nature, and especially to myself, - that the former half of the narrative was, to me, more painful than the latter, not that I was at all insensible to Mrs.
Oh, no,' cried she, eagerly interrupting me; 'it was not that.
But no letters can pass between us here,' said she, 'without giving fresh food for scandal; and when I departed, I had intended that my new abode should be unknown to you as to the rest of the world; not that I should doubt your word if you promised not to visit me, but I thought you would be more tranquil in your own mind if you knew you could not do it, and likely to find less difficulty in abstracting yourself from me if you could not picture my situation to your mind.
I own I cannot; but we know not that it will be so; - and I do know that to regret the exchange of earthly pleasures for the joys of heaven, is as if the grovelling caterpillar should lament that it must one day quit the nibbled leaf to soar aloft and flutter through the air, roving at will from flower to flower, sipping sweet honey from their cups, or basking in their sunny petals.
some faint germs of indefinite hopes were beginning to rise in my mind; not that I intended to cherish them, after all that had been said on the subject, but there they must lie for a while, uncrushed though not encouraged, till I had learnt to live without them.
It is not that they are different in nature from us; I think that the modern world has amply shown this truth.
Commonly, when management believes it is more likely than not that there will not be sufficient future income to use the NOLs, there is a valuation against the tax assets.
We could have no tariffs; we could have a uniform tariff, which the Founders believed in and permitted; or we could have protective tariffs, which some of those individuals on our side defend, and I am not that much interested in.
His argument is not that there is merely a moral connection, that sex and marriage "should" go together.
The irony is not that some do not often have such skills, it is that they do not have enough understanding concerning the importance of long-term skill acquisition to appreciate the skill evidenced in others, and to ensure students stay with an activity or task long enough to master it.
The best reason not to curb interventions that many people see as safe and beneficial, however, is not that such a ban would be dangerous but that it would be wrong.
Paul's point is not that people are "one," but that they are "in Christ," which enables them to become children of Abraham.
My point is not that these articles are uninteresting, but that in an edition dedicated to Walker's short story "Everyday Use," few critics put the story to the everyday use of criticism.