Dull (3)

'dull' is the definition.
(I know that dull can be written as dim)
This is all the clue.
(Other definitions for dim that I've seen before include "Darken" , "Badly lit or not so bright" , "Vague" , "Shady" , "Obscure, not bright" .)
'dull' is the definition.
(I know that dull can be written as obtuse)
This is all the clue.
(Other definitions for obtuse that I've seen before include "Dull, non-perceptive" , "Thick, blunt" , "Annoyingly insensitive" , "Annoyingly slow to understand" , "'Dense, slow (6)'" .)
'dull' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for dreary that I've seen before include "Dull, tedious" , "Dismal, boring" , "Monotonous" , "Dismal, funeral" , "Dismal, funereal" .)
'dull' is the definition.
(I know that dull can be written as leaden)
This is all the clue.
(Other definitions for leaden that I've seen before include "Heavy - plodding" , "Slow-moving, being like heavy metal" , "Heavy - overcast" , "Heavy or slow, like dark-gray metal" , "Dull, heavy, slow" .)
'dull' is the definition.
(I know that dull can be written as boring)
This is the entire clue.
(Other definitions for boring that I've seen before include "Tedious, of no interest" , "flat" , "Tedious and tiring" , "Dull and repetitive, a turn-off" , "like watching paint dry?" .)
'dull' is the definition.
(both can mean boring)
This is all the clue.
(Other definitions for tame that I've seen before include "Not exciting; cooperative" , "Domesticated, not wild" , "Restrained" , "Subdue" , "Flat" .)
'dull' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for flat that I've seen before include "character on the staff" , "Prostrate" , "Personal residence" , "Featureless" , "Not sloping; apartment" .)
'dull' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for drab that I've seen before include "Grey or light brown cloth" , "Dingy - shabby" , "Dull, uninteresting" , "Dreary and colourless" , "Lacklustre" .)
'dull' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for blah that I've seen before include "Insipid" , "Bombast" , "Claptrap" , "Rhubarb" , "Pretentious words" .)
'dull' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for insipid that I've seen before include "Bland, flavourless" , "Lacking 10" , "Very weak" , "dry" , "Jejune" .)
'dull' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for humdrum that I've seen before include "Commonplace, dull" , "Tediously repetitous or lacking in variety" , "Run-of-the-mill" , "Monotonous; commonplace" , "Everyday, tedious" .)
'dull' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for mundane that I've seen before include "Drab" , "Banal; earthly" , "Earthbound" , "Dull - commonplace" , "Routine" .)
(Other definitions for prosaic that I've seen before include "flat" , "Non-poetic, unromantic" , "Unimaginative - air cops (anag)" , "Dull (writing)" , "Lacking originality" .)
'dull' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for dowdy that I've seen before include "Frumpish" , "Drab" , "Unsmart" , "Drably dressed" , "Lacking chic" .)
'dull' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for lacklustre that I've seen before include "Without vitality" , "Drab" , "Dull; boring" , "Unimaginative" , "sluggish performance" .)