tasteless
adjective
1. lacking flavor
Similar word(s): unappetising, unappetizing, unpalatable, bland, flat, flavorless, flavourless, insipid, savorless, savourless, vapid, nonflavored, nonflavoured, unflavored, unflavoured, unsalted, unseasoned
2. lacking aesthetic or social taste
Similar word(s): inelegant, pretentious, barbaric, brassy, cheap, flash, flashy, garish, gaudy, gimcrack, loud, meretricious, tacky, tatty, tawdry, trashy, brummagem, camp, campy, indelicate, ostentatious, pretentious