| vagueness(noun, trouble, concern, anxiety, confusion) |
| worry(noun, verb, trouble, concern, strain) |
| abashment(noun, confusion, uncertainty, turmoil, embarrassment) |
| amazement(noun, distress, anxiety, confusion, disquiet) |
| ambiguity(noun, trouble, concern, difficulty, anxiety) |
| anguish(noun, trouble, charge, worry, concern) |
| annoyance(noun, trouble, charge, worry, concern) |
| anxiety(noun, trouble, worry, concern, strain) |
| bind(noun, fix, difficulty, uncertainty, mess) |
| botheration(trouble, difficulty, problem) |
| care(noun, trouble, worry, concern, strain) |
| chaos(noun, trouble, disorder, confusion, uncertainty) |
| charade(noun, difficulty, question, secret, puzzle) |
| closed book(noun, expression, question, secret, puzzle) |
| cloud(mist, smog, vapor) |
| confoundment(confusion, admiration, wonder, astonishment) |
| consideration(noun, concern, point, issue, matter) |
| cryptogram(noun, difficulty, question, secret, puzzle) |
| deadlock(noun, trouble, change, difficulty, pain) |
| discomfiture(noun, confusion, uncertainty, turmoil, embarrassment) |