Words to Describe graying

How graying often is described ("________ graying")

• progressive
• distinct
• sudden
• precocious
• ever
• anti
• premature
• called
• definite
• gradual
• interior
• irreversible
• ordinary
• rapid
• faint
• fast
• senile
• circumscribed
• hair
• diffuse
• slight
• global
• first
• now
• early