underpowered

/ˌʌndərˈpaʊərd/
adjective
  1. Having less power or strength than is needed to work properly or effectively.
    • My laptop feels underpowered for running modern video games.
    • The team's offense was underpowered without their star player.
    • The old lawnmower is underpowered and can't cut through thick grass.
Antonyms
What does "underpowered" mean? | whatsthatwordmean | whatsthatwordmean