attenuated
Reduced in strength
Attenuated means weakened, reduced, or thinned out.
A virus can be attenuated for use in vaccines—still alive but too weak to cause disease.
An attenuated signal has lost strength over distance.
The word applies to anything diminished from its original force or intensity: an attenuated version of his earlier argument, attenuated light filtering through clouds.
Made less capable
- fadedLost original color
- degradedReduced in rank or quality
- dampenedMade moist or subdued
- reducedMade less in amount
filtered · muffled · muted · diminished · scattered · diffused · absorbed · blocked
Made weak or infirm
- enfeebledMade weak or feeble
- sappedDepleted of vitality
- enervatedDepleted of vitality
- diminishedMade or became smaller
reduced · lessened · depleted · impaired · undermined · diluted · muted · dampened
Used without good result
- emaciatedAbnormally wasted from hunger
- gauntLean from deprivation
- haggardExhausted in appearance
- drawnRendered in lines
skeletal · withered · shrunken · frail · weakened · thin · bony · cadaverous
Made less capable
- modifiedChanged in some way
- inactivatedMade no longer operative
- avirulentIncapable of producing disease
- immunogenicAble to provoke immunity
cultured · prophylactic · subclinical · mild
weakened
Made less capable
reduced · filtered · muffled · muted · diminished · scattered · diffused · absorbed · blocked · intercepted
debilitated
Made weak or infirm
diminished · reduced · lessened · depleted · impaired · undermined · diluted · muted · dampened · subdued
wasted
Used without good result
drawn · skeletal · withered · shrunken · frail · weakened · thin · bony · cadaverous · hollowed
weakened
Made less capable
- modifiedChanged in some way
- inactivatedMade no longer operative
- avirulentIncapable of producing disease
immunogenic · cultured · prophylactic · subclinical · mild
slender
Thin and graceful
threadlike · wispy · elongated · stretched · drawn-out · spindly · filamentous · reedy · willowy · svelte
- diminisheddevalued, lessened, decreased, depreciated, reduced
- skinnythin, slim, slender, lean, skinny
- vaccinesvaccine, Pfizer, polio vaccine, Moderna, vaccines
- exhaustedtired, weary, exhausted, drained, fatigued
- weakweak, feeble, frail, fragile, faint
- immunityimmune, immunity, immune system, immune response, immune cells
attenuatedstrengthened
Made more robust
intensified · amplified · enhanced · reinforced · increased
- wave attenuationReduction in wave intensity