Career
He played mostly for (1959-1961, 1963-1964, 1966-1976). In the Czechoslovak league he played 383 matches and with 170 goals is 10th in the Czechoslovak All-Time Topscorers Table. He was capped 44 times for, scoring 14 goals.
He was a participant at the 1962 and 1970.
Unforgettable will stay his hat-trick against Brazil in match - Brazil 3:2 (1:1) played at 23 June 1968 in Bratislava. He has often been incorrectly referred to as the first player ever to score a hat-trick against Brazil (Pole Ernst Wilimowski had scored four goals in the 1938 World Cup match).
After retiring as player, Adamec began with football coaching as an assistant in. Later he coached Dukla Banská Bystrica, Tatran Prešov,, Slovan Bratislava and Inter Bratislava.
From 1999 to 2001 Adamec coached Slovakia national football team