adulterated (adj.)
- airy
- attenuate
- attenuated
- blemished
- cut
- damaged
- defective
- deficient
- dilute
- diluted
- erroneous
- ethereal
- fallible
- faulty
- fine
- flimsy
- gaseous
- immature
- impaired
- imperfect
- imprecise
- impure
- inaccurate
- inadequate
- incomplete
- inexact
- insubstantial
- lacking
- makeshift
- mediocre
- mixed
- off
- partial
- patchy
- rare
- rarefied
- reduced
- short
- sketchy
- slight
- subtle
- tenuous
- thin
- thinned
- undeveloped
- uneven
- unfinished
- unsound
- unsubstantial
- vaporous
- wanting
- watered
- windy