insipid

adj. uninteresting, dull, lifeless; lacking flavor, bland

(a.)
Wanting in the qualities which affect the organs of taste; without taste or savor; vapid; tasteless; as, insipid drink or food.
  

(a.)
Wanting in spirit, life, or animation; uninteresting; weak; vapid; flat; dull; heavy; as, an insipid woman; an insipid composition.
  

Adjective
1. lacking taste or flavor or tang; "a bland diet"; "insipid hospital food"; "flavorless supermarket tomatoes"; "vapid beer"; "vapid tea"
(synonym) bland, flat, flavorless, flavourless, savorless, savourless, vapid
(similar) tasteless
2. lacking significance or impact; "an insipid novel"
(similar) innocuous, harmless
3. lacking interest or significance; "an insipid personality"; "jejune novel"
(synonym) jejune
(similar) uninteresting
4. not pleasing to the sense of taste
(synonym) tasteless
(similar) unappetizing, unappetising

insipid
(fără gust) = tasteless
(d. conversaţie etc.) = dull
(d. conversaţie etc.) = flat
(d. conversaţie etc.) = wishy-washy