She was speaking after meeting with Croatian Parliament Speaker Gordan Jandroković and Ukrainian Parliament Chairman Ruslan Stefanchuk.
We wish to show Russia together that we stand by Ukraine, Adamova said.
Zagreb hosted the first parliamentary summit of the Crimea Platform, so Croatia will share its experience with the Czech Republic and offer assistance, said Jandroković.
At the first summit, more than 40 countries adopted a joint declaration supporting Ukraine's territorial integrity and sovereignty, and condemning Russia's invasion.
Jandroković described the summit as "a big success for Croatia and Ukraine," saying it is a good foundation for the second one due in Prague.
Stefanchuk said the new summit will be a great opportunity to talk about Ukraine's sovereignty, independence and human rights.
Today and tomorrow, Prague is hosting the Conference of Speakers of the European Union Parliaments (EUSC), which today focused on the war in Ukraine.
The support to Ukraine will not stop with its victory and the liberation of its territory, Adamova said, adding that Ukraine's victory and sovereignty over all its parts, including Crimea, is not the end of the job.
Ukraine is yet to deal with post-war reconstruction and destruction which has lasted more than a year now.
In October, Zagreb will host a donor conference on the demining of Ukraine.
Addressing a panel on the EU response to the Russian aggression, Jandroković called on the countries attending the EUSC to attend the donor conference and to "show the friendly Ukraine the very concrete and very needed support also in that way."
The Russian aggression prompted the energy diversification of Europe. Jandroković said that by expanding the capacity of its LNG terminal, Croatia "can contribute significantly to energy security and resilience in central, east and southeast Europe."
He underlined Finland's NATO accession as a consequence of the Russian invasion of Ukraine and extended support to Sweden to join as soon as possible.
Ukraine also aspires to join NATO. Stefanchuk said Kyiv hopes to be given an invitation and a time-frame at NATO's summit in Vilnius in July.
Secretary-General Jens Stoltenberg said in Kyiv last week that Ukraine belongs in NATO and invited President Volodymyr Zelenskyy to the summit in Vilnius.
On the fringes of the EUSC, Jandroković met with his Estonian counterpart Lauri Hussar. They talked about the war in Ukraine, the situation in southeast Europe, and the strengthening of Croatia-Estonia cooperation, for which they see potential in the defence industry and information technologies.
On Tuesday, Jandroković will meet with his Moldovan counterpart Igor Grosu.