lightest
light-est
adjective
Possessing the least weight when compared to others.
"This fabric is the lightest available."
adjective
Having the palest or least intense colour.
"She chose the lightest shade of blue."
Thesaurus
Synonyms: igniter, light, lighter, ignitor, fat-free, lite, low-cal, nonfat, fatless, calorie-free, brightness, luminance
Antonyms: blow out, dark, darkness, extinguish, heavy, quench, snuff out