Synonyms of energyless

1 Syllable

limp, dull

2 Syllables

fainéant, dreamy, lazy, languid, faineant, snoozy, idle, moony, laid-back, inert, listless, slothful, mopish

3 Syllables

incurious, lymphatic, romantic, languorous, lethargic, sleepyhead, passive, spiritless, abstracted, halfhearted, indolent, languishing, daydreaming

4 Syllables

sentimental, apathetic, enervated, unconcerned

5 Syllables

disinterested, inattentive, lackadaisical