expatiation
- n a discussion (spoken or written) that enlarges on a topic or theme at length or in detail
- Day of Wrath (1948) was a tenebrous expatiation on the theme of Jeremiah ("The heart is deceitful above all things, and desperately wicked"), and it roused Broadway critics to such .
- He had already played his part: the opening act of hateful bravura, unburdened by conscience, in what will be an extended expatiation of all guilt.