1. ugly and unpleasant in disposition or temper
3. low or vile
4. inferior or common; ordinary
I am the orneriest person you could ever meet when I wake up in the morning.
And for missing last week:
1. sour or astringent in taste
2. harsh or severe, as of temper or expression
Again, my mood in the morning is more acerbic than a truckload of overripe limes.
My apologies for the similarities in words and lack of imagination in sentences.