Keen and Mad about

Keen adjective - Able to sense slight impressions or differences.

Mad about and keen are semantically related. in struck on topic. In some cases you can use "Mad about" instead an adjective "Keen". informal substitute

Nearby Words: keenness, keenly

Mad about adjective - Filled with an intense or excessive love for.

Keen and mad about are semantically related. Sometimes you can replace term "Keen" with "Mad about", this terms are similar.