[tuxor]

In the StarDict format specification there is no such thing like morphology. Another guess about what could lead to your impression: Perhaps the dictionary you are using uses the synonyms function very extensively in order to replace proper morphology features. For english this might work well, for more complex languages like French, German or even Latin it will certainly end up either in an extremely huge synonyms file or in very inaccurate results.

To explain, what a "real" morphology feature would look like: This would mean, you input e.g. the french word "était" and the dictionary's output is "third person singular imparfait indicative active of <être>", which somehow links you to the entry of "être".

The StarDict format can not handle this, but of course there are ways to simulate it, but I don't know of any StarDict dictionary that actually achieves that and I dare say, it would lead to an incredibly huge dictionary (millions of entries for modestly complex languages).