- Underrepresented Adj.
- Underresearched Adj. Part. Perf.
- Underresourced Adj. Part. Perf.
- Underrewarded Part. Perf. Adj.
- Underripe Adj.
- Underripened Adj. Part. Perf.
- Undersaturated Adj.
- Underscore Subst. Verb Adj.
- Underscored Adj.
- Underscreen Adj. Subst.
- Undersea Adj. Adv.
- Underseal Subst. Verb Adj.
- Undersecretary Subst. Adj.
- Underseepage Subst. Adj.
- Undersexed Adj.
- Undershirt Subst. Adj.
- Undershoot Verb Subst. Adj.
- Undershorts Subst. Adj.
- Undershrub Subst. Adj.
- Underside Subst. Adj.
- Undersigned Adj. Subst.
- Undersize Adj. Verb Subst.
- Undersized Adj. Part. Perf.
- Underskirt Subst. Adj.
- Underslating Subst. Adj.
- Underslip Subst. Verb Adj.
- Undersluice Subst. Adj.
- Underslung Adj.
- Undersoil Subst. Adj.
- Underspecification Subst. Adj.
- Underspecified Adj. Part. Perf.
- Underspeed Subst. Adj.
- Understaffing Subst. Adj.
- Understandable Adj.
- Understated Adj. Part. Perf.
- Understeer Subst. Verb Adj.
- Understocked Adj. Part. Perf.
- Understorey Subst. Adj.
- Understrapper Subst. Adj.
- Understratum Subst. Adj.
- Understrength Adj. Subst.
- Understressed Adj. Part. Perf.
- Understructure Subst. Adj.
- Understudied Adj.
- Understudy Subst. Verb Adj.
- Undersubscribed Adj. Part. Perf.
- Undersubscription Subst. Adj.
- Undersupplied Adj.
- Undersupply Subst. Verb Adj.
- Undertanned Adj. Part. Perf.
- Undertenancy Subst. Adj.
- Undertenant Subst. Adj.
- Undertension Subst. Adj.
- Undertermined Adj.
- Undertime Subst. Adj. Adv.
- Undertrained Adj. Part. Perf.
- Undertrick Subst. Verb Adj.
- Underused Adj. Part. Perf.
- Underutilized Adj.
- Undervaluation Subst. Adj.