WordWeb Online

1. With considerable certainty; without much doubt
   - probably, likely, in all likelihood, in all probability, belike [archaic], prolly [slang]

1. A source of difficulty
   - trouble, problem, ill
    
2. A state of difficulty that needs to be resolved
   - problem, job

Type of: difficultness, difficulty, fix [informal], hole [informal], jam [informal], kettle of fish [informal], mess [informal], muddle [informal], pickle [informal]