| have doubts(verb, expression, question) |
| have reservations about(expression, idiom, doubt, suspect) |
| hesitate(verb, oppose, dispute, doubt, suspect) |
| impeach(verb, oppose, dispute, doubt, suspect) |
| impugn(verb, oppose, dispute, doubt, suspect) |
| marvel(verb, study, perplex, bewilder, mystify) |
| meditate(verb, consider, deliberate, ponder, reflect) |
| misbelieve(verb, doubt, discredit, suspect, distrust) |
| misdoubt(verb, distrust) |
| mull(perplex, bewilder, mystify) |
| mystify(perplex, bewilder) |
| nonplus(perplex, bewilder, mystify) |
| obscure(perplex, bewilder, mystify) |
| oppose(verb, dispute, doubt, suspect, query) |
| perplex(bewilder, mystify) |
| pore over(expression, consider, ponder, reflect) |
| pose(perplex, bewilder, mystify) |
| profundicate(perplex, bewilder, mystify) |
| psych out(expression, perplex, bewilder, mystify) |
| put off(expression, perplex, bewilder, mystify) |