Google has new Dictionary cards for synonyms & antonyms search queries. Dictionary Card shows you the list of words similar to query, all definitions & more information related to query. If you search for [Work synonym], Google only includes a list of synonyms for each meaning. When you search for [Work antonyms],Google shows a list of antonyms for each meaning of the word. Expand the card to see all the definitions and to find more information about word, including etymology and use over time.
For some reason, when you search for synonyms, Google shows most definitions, so the dictionary card can become quite big if the word has a lot of meanings. Here’s an example for “work”, which shows the unexpanded card. As you can see, the card uses more space than the list of search results.