Antonyms of adj sinkable

1 sense of sinkable

Sense 1
sinkable (vs. unsinkable) -- (capable of being sunk)

unsinkable (vs. sinkable) -- (incapable of being sunk; "they thought the Titanic was unsinkable")

Similarity of adj sinkable

1 sense of sinkable

Sense 1
sinkable (vs. unsinkable) -- (capable of being sunk)