天tin1馬maa5行hang4空hung1

English

1. like a heavenly steed, soaring across the skies (idiom)
2. free in thought and behaviour; imaginative; unconstrained; literally: flying horse in the sky
3. (of writing, calligraphy etc) bold and imaginative
4. unconstrained in style

粵語 — Cantonese

1. 創意無限，想像自由奔放

Examples

• 創作真係可以天馬行空，冇限制。

  In fact, artistic creations can express ideas freely without constraint.

• 我知呢個計劃係好天馬行空，但我信有一日會成功㗎。

  I know this plan seems very far-fetched, but I believe it will succeed one day.