conciliatory
adjective /kənˈsɪliətəri/
  /kənˈsɪliətɔːri/
(formal)- having the intention or effect of making angry people calm- a conciliatory approach/attitude/gesture/move
 Extra Examples- His tone was quite conciliatory.
- She had been too conciliatory towards her staff.
- The report was highly conciliatory.
 Oxford Collocations DictionaryConciliatory is used with these nouns:- attitude
- gesture
- move
- …