Olympian, Aloof, Aloofness, Apathetic, Apathy, Arid, Balderdash, Baloney, Pointless, Poky, Ponderous, Poppycock, Prolix, Resignation, Resigned, Rot, Scat, Singsong, Slack, Sloth, Slow, Sluggish, Sluggishness, Solemn, Soporific, Spiritless, Sterile, Stiff, Stodgy, Stoic, Stuffy, Stupefaction, Stupefied, Stupor, Superficial, Supine, Tasteless, Tedious, Torpid, Torpor, Treadmill, Tripe, Uncaring, Unconcern, Unconcerned, Uneventful, Uninterested, Unvarying, Vapid, Wind, Withdrawn, Wooden, Barren, Bilge, Blank, Blase, Bloodless, Bop, Bull, Bunk, Bunkum, Characterless, Cold, Comatose, Crap, Dead, Detached, Detachment, Dim, Disinterest, Disinterested, Dismal, Dreary, Dry, Dull, Dullness, Dusty, Effete, Elephantine, Empty, Everlasting, Eyewash, Fade, Flat, Gas, Harping, Heartless, Heartlessness, Heavy, Hogwash, Hollow, Hopeless, Hopelessness, Humbug, Humdrum, Inane, Indifference, Indifferent, Insipid, Insouciance, Insouciant, Invariable, Jejune, Languid, Leaden, Lethargic, Lethargy, Lifeless, Listless, Listlessness, Monotone, Monotonous, Moonshine, Nonchalance, Nonchalant, Numb, Numbed, Numbness, Pale, Pallid, Passive, Passivity, Pedestrian, Phlegm, Phlegmatic, Piffle, Plodding