kukavički

1. cowardly; in a cowardly way
   Kukavički je pobegao i ostavio prijatelje same. — He ran away like a coward and left his friends alone.
   Ponašao se kukavički kad je trebalo reći istinu. — He acted cowardly when he needed to tell the truth.

2. cowardly
   To je bio kukavički napad s leđa. — It was a cowardly attack from behind.
   Raskinuti porukom je kukavički potez. — Breaking up by text is a cowardly move.

As an adjective it declines: kukavički čin, kukavička izjava, kukavičko ponašanje.