“完全不同的”常见的英文表达有 completely different、totally different 或 entirely different。这些短语都强调了两者之间存在显著的、无相似之处的差异。例如：
Their opinions are completely different. （他们的观点完全不同。）
These two plans are totally different from each other. （这两个计划彼此完全不同。）
The two cities have entirely different climates. （这两座城市的气候完全不同。）