An expression meaning 'to be honest' or 'frankly speaking'; used to preface a candid confession or opinion.
実を言えば、彼の提案には賛成できない。
To be honest, I can't agree with his proposal.
実を言えば、試験はそれほど難しくなかった。
Frankly speaking, the exam wasn't that difficult.
実を言えば、もう帰りたい気分だ。
Honestly, I feel like going home already.