SEC Form DEFA14A filed by Nuveen Intermediate Duration Municipal Term Fund

☐     Preliminary Proxy Statement

☐     Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

☐     Definitive Proxy Statement

☒     Definitive Additional Materials

☐     Soliciting Material Under §240.14a-12

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Dear Shareholder:

We recently sent you proxy materials concerning an important proposal regarding your investment, which will be considered at a Special Meeting of Shareholders on October 12, 2022. This letter was sent to you because you held shares on the record date and we have not received your vote.

Your vote is critical to this process. Please vote prior to the Special Meeting. Because your vote is critical, our outreach to you will continue until there is sufficient voting to reach a quorum.

Thank you for your prompt attention to this matter. If you have already voted, we appreciate your participation.

Mark L. Winget

Vice President and Secretary

The Nuveen Closed-End Funds

Vote by one of these four options:

Vote Online

Visit the website noted on the enclosed proxy card and follow the instructions

Vote by Mail

Mail your signed proxy card(s) in the postage-paid envelope

Vote by Phone

Call the toll-free number printed on the enclosed proxy card and follow the automated instructions. Available 7 days a week 24 hours a day.

Speak with a Proxy

Specialist

Call 1-866-456-7052 with any questions. Specialists can assist with voting. Available Mon-Fri from 9 a.m. – 11 p.m. ET and Sat from noon – 6 p.m. ET