undamaged undated undaunted undecided undeclared undefeated undefiled undefined undeliverable undelivered undemanding undemocratic undemonstrative undeniable undeniably under under the aegis of of sb/sth under- under-the-counter underachieve underage underarm underbelly underbid underbrush undercarriage undercharge underclassman underclothes underclothing undercoat undercover undercurrent undercut underdeveloped underdog underdone underemployed underemployment underestimate underestimation underexpose underfed underfeed underfoot undergarment undergo undergone undergraduate underground undergrowth underhand underhanded underlain underlay underliie underline underlining underlying undermanned undermine underneath undernourished underpaid underpants underpass underpay underpin underplay underpopulated underprivileged underrate underscore undersea underseas undersecretary undersell undershirt undershoot undershot underside undersigned undersigned, the undersized undersold understaffed understand understandable understandably understanding understate understatement understood understudy undertake undertaken undertaker undertaking underthings undertone undertook undertow underwater underway underwear underweight underwent underworld underwrite underwriter underwritten underwrote undeserved undeserving undesirable undetected undeterred undeveloped undid undies undigested undignified undiluted undiminished undiplomatic undisciplined undisguised undismayed undisputed undisturbed undivided undo undock undoing undone undoubted undoubtedly undraped undreamed-of undress undressed undue undulate undulating undulation unduly undying