Synonyms of the word

underspent

• v. simple past tense and past participle of underspend.

efficient

• adj. Making good, thorough, or careful use of resources; not consuming extra. Especially, making good use of…
• adj. Expressing the proportion of consumed energy that was successfully used in a process; the ratio of useful…
• adj. Causing effects, producing results; bringing into being; initiating change. (Rare except in philosophical…
• adj. (proscribed, old use) Effective.