Noun irresolution has 2 senses
  1. indecision, indecisiveness, irresolution - doubt concerning two or more possible alternatives or courses of action; "his indecision was only momentary but the opportunity was lost"
    --1 is a kind of doubt, uncertainty, incertitude, dubiety, doubtfulness, dubiousness
    --1 has particulars: hesitation, vacillation, wavering
  2. irresoluteness, irresolution - the trait of being irresolute; lacking firmness of purpose
    --2 is a kind of trait
    --2 has particulars: volatility, unpredictability; indecisiveness, indecision