Mansim, also known as Borai or Moi Brai, is a West Papuan language of the eastern Bird's Head Peninsula closely related to Hattam.

[2] The status of /c, ɟ, h/ is uncertain, due to the single instance in the supporting text.

Citation markers and possessive pronouns can be stressed, but major categories like nouns and verbs do not necessarily attract main stress.

The basic word order of Mansim is SOV (subject-object-verb).

In the noun phrase, the possessive pronoun is after the nominal position.