Comparative form of the adjective 'fresh'; does not take additional degrees.
Translations
The air feels fresher after the rain.
Воздух кажется свежим после дождя.
He is a fresher student at the university.
Он новый студент в университете.
Definitions
More fresh; having a newer or more recent quality. The bread from the bakery is fresher than the one from the supermarket.
Having a more vivid or bright appearance. The paint on the walls looks fresher after the recent renovation.
Having a more invigorating or refreshing quality. The air felt fresher after the rain cleared the dust from the atmosphere.