Example: "The dull boom of distant breaking waves"
Example: "A boring evening with uninteresting people"
Example: "Dull greens and blues"
Example: "So dense he never understands anything i say to him"
Example: "Business is dull (or slow)"
Example: "A dull gaze"
Example: "The dull thud"
Example: "Age had dulled the surface"
Example: "The varnished table top dulled with time"
Example: "The shock numbed her senses"
One who, or that which, dulls.