すいすい
Meanings
Adverb
Adverb taking と
1. lightly and smoothly (of movements); swiftly; glidingly (Onomatopoeia)
2. (progressing) smoothly; (solving) easily (Onomatopoeia)
Other readings
Examples4
ヤンマ
The dragonfly was skimming across the water.
バイク
Motorbikes are nice. You can move smoothly even through a traffic jam.
トム
Tom can swim like a fish.
ペンギンって、
Penguins look strange when they waddle on land, but the way they swim so smoothly through the water is pretty cool.