penultimate
1. [ adjective ] next to the last
Synonyms: next-to-last
Examples:

"the author inadvertently reveals the murderer in the penultimate chapter" "the figures in the next-to-last column"

Related terms: last
2. [ noun ] (linguistics) the next to last syllable in a word
Synonyms: penultima penult
Related terms: syllable
Similar spelling:   penultima