undersigned

UK: /ˌʌndə^rˈsaɪnd/

US: /ˈʌndɚˌsaɪnd/

US: (adj. un′dər sīnd′, un′dər sīnd′; n. un′dər sīnd′)

WordReference Random House Learner's Dictionary of American English © 2025

un•der•signed /ˈʌndɚˌsaɪnd/   adj. 

1. being the one or ones whose signatures appear at the end of a letter or document.

n. [countable]

2. the undersigned, the person or persons signing a letter or document:
   The undersigned agrees to the terms of the contract.

See -sign-.

WordReference Random House Unabridged Dictionary of American English © 2025

un•der•signed  (adj. un′dər sīnd′, un′dər sīnd′;n. un′dər sīnd′), adj. 

1. being the one or ones whose signature appears at the end of a letter or document:
   All of the undersigned persons are bound by the contract.
2. signed at the bottom or end of, as a writing:
   The undersigned names guarantee the good faith of the statement.

n. 

3. the undersigned, the person or persons signing a letter or document.

• under- + sign + -ed² 1635–45

Collins Concise English Dictionary © HarperCollins Publishers::

undersigned / ˈʌndəˌsaɪnd/ noun

1. the undersigned ⇒ the person or persons who have signed at the foot of a document, statement, etc

adjective

1. having signed one's name at the foot of a document, statement, etc

WordReference Random House Unabridged Dictionary of American English © 2025

un•der•sign  (un′dər sīn′, un′dər sīn′), v.t. 

1. to sign one's name under or at the end of (a letter or document);
   affix one's signature to.

• under- + sign 1570–80