The same way Europe is in conflict with Russia now - we send supplies and all the support we can do without starting an actual war.
I love in Poland, spoke with many Ukrainians, and these seem to be commonly accepted definitions.
Invasion, occupation, and annexation of a large part of another country is war by every measure, even ignoring Donbas.
If someone stated that the attack on Pearl Harbor happened in 1945 and someone else corrected them that it happened in 1941, is that inflammatory?
Edit: Maybe you're referring to it being called a "war" in the first place is inflammatory? I'd give you that, and we'd be better off calling it a conflict as none of the parties formally declared war, but then we start veering into semantics instead...