Lacking an appetizing flavor
Lacking style and good taste
Lacking in delicacy or refinement
Lacking good taste
Oxygen is a colourless, odourless and tasteless gas.
It is tasteless, colourless and odourless gas, which is exceedingly stable and inert.
She considered throwing the tasteless food cubes to the trees he warned her against feeding every day.
Most venoms are tasteless, but cobra poison is said to be disagreeably bitter.
Nitrogen is a colourless, tasteless and odourless gas, which is only very slightly soluble in water.