na-adjective
full of gaps; sparse; thin; insubstantial
Describes something that lacks density or substance: a sparse crowd, thin hair, a hollow vegetable, or a flimsy argument. Often used with だ/な.
この大根はスカスカだ。
This daikon is spongy and hollow.
会場はまだスカスカで、人がまばらだった。
The venue was still half empty, with only a few people scattered around.
adverb, adverb taking the 'to' particle
cutting sharply; cleanly
Mimetic adverb describing a clean, sharp cut. Often used with と and a cutting verb like 切る.
包丁でスカスカと野菜を切る。
I cut the vegetables cleanly with a kitchen knife.
adverb, adverb taking the 'to' particle
progressing smoothly
Archaic mimetic adverb for things going smoothly without hindrance. Rare in modern Japanese.
昔の文では「仕事がスカスカと進む」のように使われた。
In old texts, it was used like 'the work progresses smoothly'.