Slack and Unenergetic

Slack adjective - Failing to give proper care and attention.

Unenergetic and slack are semantically related In some cases you can use "Unenergetic" instead an adjective "Slack".

Nearby Words: slacken, slackened, slackness, slacker, slacked

Unenergetic adjective - Deficient in alertness or activity.

Slack and unenergetic are semantically related in inactive topic. Sometimes you can use "Slack" instead an adjective "Unenergetic", if it concerns topics such as lazy.