All potential antonyms
po·ten·tial
P p adj potential
- unlikely — not likely to be or occur; improbable; marked by doubt.
- helpless — unable to help oneself; weak or dependent: a helpless invalid.
- lacking — being without; not having; wanting; less: Lacking equipment, the laboratory couldn't undertake the research project.
- impossible — not possible; unable to be, exist, happen, etc.
- unpromising — unlikely to be favorable or successful, as the weather, a situation, or a career.