energyless
Without any vigor
Energyless means lacking energy or vitality—drained, listless, depleted.
The word is uncommon, with *tired*, *exhausted*, or *lethargic* serving the same purpose more naturally: I felt completely energyless after the flu.
It occasionally appears in technical contexts describing systems without available energy.
Emptied of resources
- depletedSeverely reduced or emptied
- spentExhausted or disbursed
- sappedDepleted of vitality
- worn-outDepleted through overuse
tired · weary · fatigued · enervated · prostrated · debilitated · weakened · emptied
Not currently functioning
- stillUnmoving, or continuing
- motionlessLacking all movement
- staticWithout motion or change
- stagnantWithout movement or progress
idle · dormant · immobile · unmoving · lifeless · powerless · unpowered · dead
Lacking incentive or drive
- indifferentLacking interest or concern
- passiveNot actively participating
- disinterestedFree from personal stakes
- uninterestedLacking curiosity or concern
detached · uncaring · uninspired · spiritless · lackluster · flat · blank · numb
drained
Emptied of resources
worn-out · tired · weary · fatigued · enervated · prostrated · debilitated · weakened · emptied · frazzled
sluggish
Slow and inactive
drowsy · sleepy · heavy · leaden · listless · somnolent · groggy · dopey · foggy · stuporous
inactive
Not currently functioning
- stillUnmoving, or continuing
- motionlessLacking all movement
- staticWithout motion or change
stagnant · idle · dormant · immobile · unmoving · lifeless · powerless · unpowered · dead · flat
unmotivated
Lacking incentive or drive
- indifferentLacking interest or concern
- passiveNot actively participating
- disinterestedFree from personal stakes
uninterested · detached · uncaring · uninspired · spiritless · lackluster · flat · blank · numb · dispirited
energy, energetic, energize, synergy, energizing, energized, energetically, synergistic, energizes