to make or become smart or smarter; specif.,: usually with up
- to make or become neater or more stylish
- to make or become more alert, knowing, aware, etc.
verbsmart·ened, smart·en·ing, smart·ens
- To improve in appearance or stylishness; spruce up.
- To make quicker: smarten the pace.
To make oneself smart or smarter.
(third-person singular simple present smartens, present participle smartening, simple past and past participle smartened)