downness

The property of being a down quark.

Each of the flavors has a corresponding property, so that the down quark carries "downness," although upness and downness are rarely mentioned,

The down and antidown quarks on the left have a total downness of zero, which is preserved on the right.

The quality or state of being physically down.

To some degree this feature determines the profiles themselves: upness in B and downness in A, but the downness of C, more than a downness of relaxation, is a downness of being held down.

Walking down in the mornings, up in the afternoons, which, with the weight of the tomes, is the fundamental issue— downness, upness, when it should of course be upness, downness, the fall and the rise hardly ever to be spoken of at all, always the rise and fall of things, almost any sort of thing having its rise and then its fall, the rise necessarily preceding the fall […]

Lowness of pitch or tone.

If children are taught to listen to certain definite sounds (whisles, birds, singing, etc.) they will soon observe something as to the "upness" and "downness" of tones;

The upness and downness of vowel sounds affect us physically in different ways .

The quality or state of being low in a social hierarchy; lowliness.

The downs spend a lot of time taking the ups out to lunch and dinner to explain their downness.

On the other hand, if a child of 2 were to say 'down' when he meant to say 'up', one could argue that the concept of 'upness' would not necessarily activate the concept of 'downness' when the child was constructing a proposition regarding an activity which involved only 'upness' (for example, 'Pick me up').

The state of having a low or disparaging mood; a feeling of depression, helplessness, or dislike.

[…] the transition from the emotion of grief to the emotion of depression seems to be made by way of a mood that we might call depression —a generalized downness in one's view of things that then attaches itself, more or less non-rationally, to "objects" like the new president and my deficit of talent.

When we are overwhelmed with the pain of downness, this is probably the time that the help of a strong, nurturing ally can help lift us up.