スイスイ

スイスイ, すいすいsuisui

adverb

  1. lightly and smoothly (of movements)
  2. swiftly
  3. glidingly
  4. (progressing) smoothly
  5. (solving) easily

Study it in Yanamino

Data from JMdict, KANJIDIC2 (EDRDG), KanjiVG, CC-CEDICT and Make Me a Hanzi. Sources and licences