from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. Simple past tense and past participle of undercalculate.
Sorry, no etymologies found.
The Store's representative also seriously undercalculated the time it would take to roof the building, considering the time of year and the total square footage of the project.
I saw I had rather undercalculated our distance, or over-done the dynamite and powder, which you please.