doorstopper
Noun
Meaning
a stop that keeps open doors from moving
Source: WordNetSynonyms
Hypernyms
Examples
Most so-called doorstopper novels contain multitudes of characters, conflicts, decades, or even footnotes.
TV ads blared out the doorstopper specials for weeks in advance.
It’s a doorstopper, but other than one brief dip, the pacing keeps the pages turning, while the details reward close reading.