Antonyms of adj nonfissionable

1 sense of nonfissionable

Sense 1
nonfissionable (vs. fissionable) -- (not capable of undergoing fission)

fissionable (vs. nonfissionable), fissile -- (capable of undergoing nuclear fission; "a fissionable nucleous"; "fissionable material")

Similarity of adj nonfissionable

1 sense of nonfissionable

Sense 1
nonfissionable (vs. fissionable) -- (not capable of undergoing fission)