firmly set in or attached to the earth.

limited to the earth or its surface.

having only earthly interests.

lacking in imagination or sophistication

earthbound prose.

adjective

earthen , earthy , mundane , secular , tellurian , telluric , temporal , terrene , terrestrial , worldly , arid , aseptic , colorless , drab , dry , flat , flavorless , lackluster , lifeless , lusterless , matter-of-fact , pedestrian , prosaic , spiritless , sterile , stodgy , unimaginative , uninspired