Is it better to learn new words in a target language by translating it or staying in the target language?

I have been heavily slacking off with my english brush up goals in these months with my small notebook, but I have just now realized that Anki is way more comfy as I thought it would be after downloading it. However it doesn't really have a proper intermediate / advanced dictionary in my native language, but it seems some or most people seems to prefer learning new words in their target language.

So my question is this. Is it better to learn vocab by translating it to my language or purely understanding it from the target language's definitions?