doubt; misgivings; suspicion; qualms
Refers to a feeling of uncertainty or lack of conviction about something, often with a negative connotation. Used in contexts where one questions the truth, reliability, or appropriateness of a situation or statement.
I had doubts about his explanation.
I feel misgivings about that plan.
Compound of 疑 (gi, 'doubt') and 感 (kan, 'feeling'). The exact historical derivation is uncertain, but the word is conventionally associated with the meaning of 'feelings of doubt'.