Does Ukrainian language support only by Hunspell speller?
Why is there no Morfologik speller, like for the Russian language?
Ukrainian language has fully-supported Morfologik speller module in LT.
It’s based on VESUM dictionary - currently over 350k lemmas.
Note: there are also hunspell dictionary for Ukrainian (and its derivative addons for Firefox and LibreOffice.org) that are based on the same dictionary.