He expressed undoubting certainty about the outcome.
undoubting belief
Frequency:
60
%
Her undoubting belief in the cause inspired others.
undoubting trust
Frequency:
50
%
Their undoubting trust in each other strengthened their relationship.
Idiomatic Expressions for undoubting
Phrase: undoubting Thomas
Meaning: someone who is skeptical or refuses to believe something without direct evidence
Usage: The phrase is often used to describe a person who is unwilling to accept something without proof or evidence.