snuti -nut- gismu

x1 (event/state) is an accident/unintentional on the part of x2; x1 is an accident.

See also zukte, cunso.

In notes:

cunso
x1 is random/fortuitous/unpredictable under conditions x2, with probability distribution x3.
zukte
x1 is a volitional entity employing means/taking action x2 for purpose/goal x3/to end x3.
tolsnuti
x1 (event/state) is deliberate/intentional on the part of x2; x1 is deliberate.