impossible
The opposite of possible is impossible.
possible
possible
As Soon As possible
Certainly.
believable, possible
Impossible
'Cynicism' is one possible answer.
impossible
The opposite is unfavorable, with other possible words being adverse, contrary, or hostile.
The opposite of "possible" is "impossible." While "possible" refers to something that can happen or be achieved, "impossible" indicates that something cannot occur or be done. These terms are often used to describe the feasibility of events or actions.
The opposite would be unfriendly. Other possible adjectives are hostile, antagonistic, inhospitable, or inimical.