疑うたがう

う

た

が

う

Common wordJLPTN3Freq.FrequencyTop 5,000

Meanings

1

godan verb (-u), transitive verb

Broadly used for questioning the truth, reliability, or honesty of something or someone. Covers mild doubt to strong suspicion.

さつ

は

彼かれ

が

犯はん

人にん

で

は

ない

か

と

疑うたが

っ

て

いる

。

The police suspect that he might be the culprit.

怪あやしむ
怪しむ is more about finding something suspicious or questionable in a specific situation, while 疑う is broader and can refer to doubting a fact or a person's honesty.
信しんじる
Antonym; 信じる means to believe or trust, the opposite of 疑う.

The kanji 疑 carries the meaning of 'doubt' or 'suspect'. The verb うたがう is a native Japanese word with an uncertain historical derivation.