Answer: dull

AnswerCrossword Clue
DULLHard to cut with
DULLUninteresting
DULLNot very bright
DULLIn need of sharpening
DULLOvercast
DULLBlunted
DULLLike watching paint dry
DULLNeeding sharpening
DULLPedestrian
DULLNeeding stropping
DULLFar from vivid
DULLLike a matte finish
DULLSnoozeville
DULLNot acute
DULLObtuse
DULLSlow-witted
DULLLike dishwater?
DULLDreary.
DULLTedious.
DULLCloudy.
dullstupid
DULLBoring
DULLIn need of honing
DULLLackluster
DULLYawn-provoking
DULLJejune
DULLFar from bright
DULLBlah
DULLHo-hum
DULLTake the edge off
DULLYawn-inducing
DULLBlunt
DULLNot sharp
DULLA real yawner
DULLUnlike the life of the party
DULLCausing yawning
DULLFar from scintillating
DULLLike dishwater
DULLLike a party pooper
DULLSlack