IPA: /ˈʌndəˌtɛnənt/
KK: /ˈʌndərˌtɛnənt/
A person who rents property from another tenant instead of directly from the landlord.
The undertenant signed a lease agreement with the primary tenant to occupy the apartment.
Undertenant → It is formed from "under-" (meaning beneath or subordinate) and "tenant" (from Old French *tenant*, meaning holder or occupant). An undertenant is someone who holds a lease or tenancy beneath another tenant, indicating a subordinate position in the hierarchy of tenancy.
Think of someone who is a 'holder' ('tenant') but is 'beneath' ('under-') another in the rental hierarchy — that's what an undertenant is.