1. A clear, unmistakable sign or suggestion that is immediately apparent or self-evident
The dark clouds are an obvious indication that it will rain soon.
As nuvens escuras são uma indicação óbvia de que vai chover em breve.
2. An unmistakable hint or clue that requires no interpretation
His angry expression was an obvious indication of his displeasure.
Sua expressão irritada era uma indicação óbvia do seu desgosto.