- 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.
- Undesignated Adj. Part. Perf.
- Undesigned Adj.
- Undesigning Adj.
- Undesirable Adj. Subst.
- Undesired Adj. Part. Perf.
- Undesirous Adj.
- Undestroyed Adj.
- Undestroying Adj.
- Undestructive Adj.
- Undetachable Adj.
- Undetached Adj.
- Undetectable Adj.
- Undetected Adj. Part. Perf.
- Undeterminable Adj.
- Undetermined Adj.
- Undeterred Adj. Part. Perf.
- Undevelopable Adj.
- Undeveloped Adj.
- Undeviating Adj.
- Undevised Adj.
- Undiagnosed Adj.