An user Dutch
says…

De
Determiner
  sfeer
Noun
  op
🆙
Adposition
  hun
Pronoun
 departement  was
Auxiliary
  vijandig
Adjective
.

The atmosphere in their department was hostile.
Words and sentences
New
de

New
sfeer

  1. sphere, round object
  2. atmosphere, ambiance, mood

🆙
New
op

New
hun

  1. The dative case of the third-person plural personal pronoun: them, to them.
  2. The accusative case of the third-person plural personal pronoun: them.

New
was

New
vijandig

hostile (with an aggressive approach; belonging or appropriate to an enemy)

Comments