| posthaste | (adv) อย่างรวดเร็วมาก, Syn. swiftly, speedily, hastily |
| - Posthaste. | ได้เลย Django Unchained (2012) | |
| I'll round up the men posthaste. | ผมจะรีบไปรวบรวมไพร่พล Episode #1.3 (2012) |
| Posthaste | n. Haste or speed in traveling, like that of a post or courier. Shak. [ 1913 Webster ] |
| Posthaste | adv. With speed or expedition; |