Bitter: being, inducing, or marked by the one of the five basic taste sensations that is peculiarly acrid, astringent, and often disagreeable
Adjective. They generally have a bitter taste.
bright: radiating or reflecting light
Adjective. The bathroom is bright and spacious.
excited: having, showing, or characterized by a heightened state of energy, enthusiasm, eagerness, etc
Adjective. Everybody's too excited about the Harvest Festival.