This is the 9268th most frequent Japanese word.
疑っ
"疑っ" means "doubted" or "suspected."
Here, '疑って' (doubted) is used to express doubt or skepticism towards the validity of information.
彼の話を聞いたとき、正直にその情報を疑ってしまった。
When I heard his story, I honestly doubted the information.
In this sentence, '疑う' (to doubt) is presented negatively as '疑うことなく' (without doubting) to emphasize complete belief or trust.
私たちは目撃した奇妙な現象を疑うことなく信じた。
We believed the strange phenomenon we witnessed without doubt.
The word '疑う' (to doubt) is directly used to specify questioning someone's truthfulness.