In-betweeny

She thought about the color black, the nature of blackness, and the in-betweeny shades therein.

Source: wiktionary

I half slept and half woke and enjoyed for several hours that dreamy, in-betweeny state of living that hovers between consciousness and sleep.

Source: wiktionary

Then there are those in-betweeny spring and autumn days when you're in two minds about what the “real-feel” temperature is — and no matter what you wear, it always seems to be the wrong thing.

Source: wiktionary

I was an in-betweeny, neither one thing nor the other, and though on the one hand it was frustrating and at times even made me feel freakish, there were also many occasions when my situation gave me cause for amusement.

Source: wiktionary