Apology to Trad was sincere: Frecklington

Queensland Opposition Leader Deb Frecklington insists her apology to Deputy Premier Jackie Trad in parliament was sincere.

Ms Frecklington dismissed suggestions she was smiling insincerely as she apologised for accusing Ms Trad of ignoring corruption allegations against Ipswich City Council.

"It was sincere. Absolutely it was ... in the robustness of the house, when you've got people on the other side jeering and carrying on at you as well, I apologise if my resting face was a smile," she told reporters on Friday.