- 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.
- Undervalued Adj.
- Undervest Subst. Adj.
- Undervoltage Subst. Adj.
- Undervulcanization Subst. Adj.
- Underwaist Subst. Adj.
- Underwater Subst. Adj. Adv.
- Underway Adj. Adv.
- Underwear Subst. Adj.
- Underweight Adj. Subst.
- Underwhelmed Adj.
- Underwhelming Adj. Subst.
- Underwing Subst. Adj.
- Underwire Subst. Adj.
- Underwood Subst. Adj. Eigenn.
- Underworking Adj. Subst.
- Underworld Subst. Adj.
- Underwriter Subst. Adj.
- Underwriting Subst. Adj.
- Underyearling Subst. Adj.
- Undescended Adj. Part. Perf.
- Undescribable Adj.
- Undeserved Adj.
- Undeserving Adj. Subst.