1. Increasing by successive addition
   "the eventual accumulative effect of these substances"
   - cumulative 
2. Marked by acquiring or amassing
   "we live in an accumulative society"

See also: accumulate, acquisitive, additive

• quirk bead
• quirk molding
• quirk moulding
• quirkiness
• quirky
• quirt
• Quiscalus
• Quiscalus quiscula
• quisling
• quislingism
• quit
• quitch
• quitclaim
• quitclaim deed
• quite
• quite a
• quite a little
• quite an
• quite so
• Quito
• quits
• quittance
• quitter
• quiver
• quiverful