ちらつく (translations)→ flash flicker
ゆらゆら揺れる (translations)→ flutter sway
起伏する (translations)→ run undulant
震える (translations)→ palpitation quake quiver shake shaky shiver shudder tremble
不安定な (translations)→ brittle uncertain
揺れ動く (translations)→ shift vacillate
