nadjačati

1. (+ acc.) to overpower; to overcome; to prevail over
   Na kraju je radoznalost nadjačala strah. — In the end, curiosity overcame fear.
   Domaćini su u drugom poluvremenu nadjačali goste. — The home team overpowered the visitors in the second half.
2. (of sound) to drown out
   Muzika je nadjačala njegov glas. — The music drowned out his voice.

The imperfective is "nadjačavati".