must-see

Univerbation of must (auxiliary) +‎ see (verb).

must-see (not comparable)

1. Unmissably good.

must-see (plural must-sees)

1. Anything unmissably good, such as a film or television programme or a tourist attraction.

• “must-see”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.

• mustees