psychological warfare
noun /ˌsaɪkəlɒdʒɪkl ˈwɔːfeə(r)/
/ˌsaɪkəlɑːdʒɪkl ˈwɔːrfer/
[uncountable]- things that are said and done in order to make an opponent believe that they cannot win a war, a competition, etc.
- a subtle form of psychological warfare