1. absence of sophistication, elegance, or good manners; coarseness or crudeness
His lack of refinement was evident in his rude behavior at the dinner table.
A sua falta de refinamento era evidente no seu comportamento rude à mesa de jantar.
2. absence of polish or sophistication in speech, manner, or appearance
The actor's performance lacked refinement and authenticity.
A performance do ator tinha falta de refinamento e autenticidade.