Related by context. Frequent words. (Click for all words.) 56 unforeseen 54 unexpected 51 unanticipated 45 unavoidable 45 spontaneous 43 downtime 40 interruption 40 unnecessary 39 interruptions 39 impromptu 38 unexplained 38 abrupt 38 aborted 37 catastrophic 37 occurrence 36 occur 36 accidental 36 unprepared 36 inevitable 35 disruptions 35 occurring 35 unpleasant 35 unfortunate 34 sudden 34 resulting 34 unpredictable 34 subsequent 33 interrupt 33 cancellation 33 disruption 33 awkward 33 occurred 33 routine 33 contingencies 32 planned 32 disastrous 32 mishap 32 insignificant 32 unwelcome 32 disrupted 32 maintenance 32 extravagant 32 unrelated 32 cancellations 32 embarrassing 32 inadequate 32 abnormal 32 regrettable 32 occasional 32 chaotic 31 needless 31 predictable 31 arise 31 bizarre 31 adverse 31 cancel 31 unannounced 31 emergencies 31 emergency 31 irresponsible 31 odd 30 unwarranted 30 outages 30 incurring 30 postponing 30 tragic 30 isolated 30 delays 30 trivial 30 impending 30 canceling 30 contingency 30 arbitrary 30 unaware 30 incurred 30 consequence 30 interrupted 30 abandonment 30 during 30 unacceptable 30 outrageous 29 breakdowns 29 drastic 29 planning 29 unusual 29 due 29 endless 29 ad hoc 29 occurs 29 nighttime 29 canceled 29 costly 29 mundane 29 resulted 29 operational 29 hurried 29 sabotage 29 unauthorized 29 frequent 28 irregular 28 stressful