おととし

おととし
noun
year before last
1. year before last
The year two years ago from the current year.
I went to Japan the year before last.
The summer of the year before last was hot.
He graduated from university the year before last.
A friend who got married the year before last had a baby.
Going skiing in the winter of the year before last was fun.

おととし means 'the year before last' (two years ago).

KANJI:
Written as 一昨年(おととし) in formal contexts. Also read as 一昨年(いっさくねん) in very formal/written Japanese.

YEAR SEQUENCE:

SIMILAR PATTERN:

USAGE:
More common in spoken Japanese; 一昨年(いっさくねん) is preferred in formal writing.