| be apprehensive of(verb, dispute, challenge, doubt, question) |
| be curious(verb, dispute, challenge, doubt, question) |
| be dubious(verb, dispute, challenge, doubt, question) |
| be in a quandary(verb, dispute, challenge, doubt, question) |
| be puzzled(verb, dispute, challenge, doubt, question) |
| be uncertain(verb, dispute, challenge, doubt, question) |
| be undetermined(verb, dispute, challenge, doubt, question) |
| call in question(verb, expression, idiom, dispute, challenge) |
| demur(verb, dispute, challenge, doubt, question) |
| disbelieve(verb, hold, dispute, challenge, think) |
| fear(verb, dispute, challenge, doubt, question) |
| fluctuate(verb, dispute, challenge, doubt, question) |
| give no credence(verb, expression, idiom, dispute, challenge) |
| have qualms(verb, expression, dispute, challenge, doubt) |
| imagine(verb, consider, dispute, challenge, think) |
| insinuate(verb, dispute, challenge, doubt, question) |
| misdoubt(verb, dispute, challenge, doubt, question) |
| misgive(verb, dispute, challenge, doubt, question) |
| mistrust(verb, hold, dispute, challenge, think) |
| not buy(verb, expression, dispute, challenge, doubt) |