underexposed (adj.) underestimate (v.) underdressed (adj.) underdone (adj.) underdog (n.) underdeveloped (adj.) undercut (v.) undercurrent (n.) undercroft (n.) undercover (adj.) underclassman (n.) underclass (n.) undercharge (v.) undercarriage (n.) underbrush (n.) underbred (adj.) underbid (v.) underbelly (n.) underarm (adj.) underage (adj.)