正せい確かくに言いえば

expression

to be precise; strictly speaking

Used to clarify or correct a statement, often at the beginning of a sentence. Similar to 正確に言うと.

See also: 正確に言うと

• 正せい確かくに言いえば、彼かれは昨日きのうではなく一昨おとと日い来きた。

  To be precise, he came the day before yesterday, not yesterday.

• 正せい確かくに言いえば、これは私わたしの本ほんではなく図と書しょ館かんの本ほんです。

  Strictly speaking, this is not my book but a library book.