something that will surely happen

確実なこと, 朝飯前
according to facts instead of opinions

具体的な, 明確な
in a definite and clear manner due to being based on facts instead of ideas or guesses

具体的に
the belief in one's own ability to achieve goals and get the desired results

自信, 信頼
having a strong belief in one's abilities or qualities

自信がある, 確信している
in a manner that shows strong belief in one's own skills or qualities

自信を持って, 確信を持って
a belief or opinion that is very strong

確信, 強い信念
having a strong belief in something

確信している, 納得した
to put trust in something or someone

頼る, 信頼する
to check the accuracy or validity of something by using alternative sources or methods

クロスチェックする, 照合する
an act of determining the accuracy or credibility of something by comparing it with various sources

クロスチェック, 相互検証
in a way that is certain and beyond any doubt

断然, 疑いなく
certainly happening and unlikely to change

明確な, 確定的な
(of a person) firm and clear in thoughts, decisions, or actions

明確な, 断固とした
in a certain way

確実に, 間違いなく
to have confidence or trust in someone or something

頼る, 信頼する
convinced that everything one believes in is true and others are wrong

独断的な, 頑固な
in a critical and arrogant manner therefore refusing to consider other's opinions

独断的に
to make sure that something will happen

保証する, 確保する
to believe something strongly, even though one cannot explain why
something that is assumed to be true or already decided upon before any evidence or arguments are presented

既定の結論, 当然の結果
to understand something completely and clearly
to make sure that something will occur

保証する, 確実にする
| 確信と疑い |
|---|