该理论与既有事实不一致。

The theory is ___inconsistent with established facts.

这家餐厅的食物质量很不稳定，有时很棒有时很糟糕。

The food quality at this restaurant is ___inconsistent, sometimes great and sometimes terrible.

他的演讲内容前后矛盾，让人难以理解。

His speech was ___inconsistent, making it hard to follow.