プログレッシブ和英中辞典(第4版)の解説
かくじつ【確実】
❶〔確かなこと〕確実な certain; sure ((to do；that)) ⇒たしか（確か）
確実な証拠をつかんでいる
I have positive [indisputable] proof.
確実な貯蓄法
a sure [dependable] way of saving money
出席者の確実な数が知りたい
I want to know the exact number of persons who will be present.
彼が明日帰ることは確実だ
He is sure [certain] to come back tomorrow.
今後どうなるか確実にはわからない
I don't know for certain how things will turn out.
お金は確実にお返しします
I will return the money to you without fail.
これは確実に彼の筆跡だ
This is undoubtedly his handwriting.
彼は確実に勝つと思いますか
Are you certain [sure] he will win?
❷〔信頼できること〕確実な reliable
確実な証人［保証人］
a reliable witness [guarantor]
この説は確実な根拠に基づいている
This theory is based on solid ground.
彼の身元は確実だ
He has good references.
❸〔堅実なこと〕確実な sound
確実な投資［事業］
a sound investment [business]
彼は確実に進歩している
He is making steady progress.
確実性
certainty; reliability