Tasteless (5)
(Other definitions for vulgar that I've seen before include "Coarse and common" , "Unrefined" , "In bad taste" , "Coarse or ribald" , "Lacking refinement, culture or taste" .)
'tasteless' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for tawdry that I've seen before include "Tastelessly showy" , "Cheap and flashy" , "Showy but cheap and nasty" , "Showy, cheap; sordid" , "Cheap; sleazy" .)
'tasteless' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for insipid that I've seen before include "without taste" , "Boring and lacking liveliness" , "Tasteless" , "Wishy-washy" , "Very weak" .)
(Other definitions for bland that I've seen before include "Flavourless" , "Mild; dull" , "Insipid - uninteresting" , "Boringly characterless" , "Mild and insipid" .)
'tasteless' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for tacky that I've seen before include "Cheap and nasty" , "not quite dried?" , "In bad taste; not quite dry" , "like gum" , "Gummy -- tasteless" .)