Thesaurus.com Dictionary.com

sluggishness

NOUN

apathy

Synonyms

STRONGEST

fatigue inaction lethargy

STRONG

drowsiness idleness languor laziness

Antonyms

STRONGEST

energy liveliness vigor

STRONG

diligence industry

NOUN

inactivity

Synonyms

STRONGEST

lethargy

STRONG

inertia

Antonyms

WEAK

energy vigor

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.