| halting(verb, adjective, uncertain, doubtful) |
| delaying(verb, adjective, uncertain, doubtful) |
| dawdling(verb, adjective, uncertain, doubtful) |
| faltering(verb, adjective, uncertain, doubtful) |
| doubting(adjective, uncertain, doubtful, cautious) |
| half-hearted(adjective, uncertain, doubtful, cautious) |
| hanging back(expression, adjective, uncertain, doubtful) |
| indecisive(adjective, uncertain, doubtful, cautious) |
| irresolute(adjective, uncertain, doubtful, cautious) |
| lacking confidence(expression, adjective, ready, uncertain) |
| lazy(adjective, uncertain, doubtful, cautious) |
| skeptical(adjective, uncertain, doubtful, cautious) |
| tentative(adjective, uncertain, doubtful, cautious) |
| uncertain(adjective, doubtful, cautious, diffident) |
| uneager(adjective, ready, uncertain, doubtful) |
| unpredictable(adjective, uncertain, doubtful, cautious) |
| unsure(adjective, uncertain, doubtful, cautious) |
| vacillating(adjective, uncertain, doubtful, cautious) |