insipid

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

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

(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.
  

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

Synonyms and related words:
arid, banal, bare, barren, betwixt and between, blah, bland, blank, bleached, bloodless, bromidic, changeable, characterless, clear, cold, colorless, common, commonplace, dead, devoid, dilute, diluted, dismal, distasteful, draggy, drearisome, dreary, driveling, dry, dryasdust, dull, dusty, effete, elephantine, empty, etiolated, fade, fair, fair to middling, fairish, featureless, feeble, flat, flavorless, gruelly, halfhearted, heavy, ho-hum, hollow, humdrum, ill-flavored, inane, indecisive, indifferent, inexcitable, infirm of purpose, infirm of will, innocuous, irresolute, jejune, lackluster, leaden, lifeless, low-spirited, matter-of-fact, mediocre, medium, middling, mild, milk-and-water, milky, moderate, modest, mundane, mushy, namby-pamby, neutral, null, null and void, of a kind, of a sort, of sorts, ordinary, pale, pallid, pappy, passable, pedestrian, plain, plodding, poetryless, pointless, poky, ponderous, prosaic, prosing, prosy, pulpy, respectable, sapless, savorless, slight, slow, so-so, soft, solemn, spiceless, spiritless, stale, sterile, stiff, stodgy, stuffy, subdued, superficial, swashy, tame, tasteless, tedious, tenuous, thin, tiresome, tolerable, unappetizing, unembellished, unflavored, unidealistic, unimaginative, unimpassioned, uninteresting, unlively, unpoetic, unrelieved, unromantic, unsavory, vacant, vacuous, vapid, void, washy, watered, watered-down, waterish, watery, weak, weariful, wearisome, white, wishy-washy, with nothing inside, without content, wooden