insipid

adjectives

lacking taste or flavor or tang
"a bland diet"; "insipid hospital food"; "flavorless supermarket tomatoes"; "vapid beer"; "vapid tea"
bland, flat, flavorless, flavourless, insipid, savorless, savourless, vapid
is derived from
insipidness
is derived from
insipidity
lacking interest or significance or impact
"an insipid personality"; "jejune novel"
insipid, jejune
is derived from
insipidness