Words to Describe initiators

How initiators often is described ("________ initiators")

• useful
• polymeric
• principal
• top
• organic
• soluble
• original
• successful
• chief
• type
• endogenous
• various
• potential
• democratic
• potent
• photo
• environmental
• late
• real
• common
• primary
• conventional
• important
• suitable
• main
• organometallic
• active
• aggressive
• chemical
• based
• usual
• free
• difunctional
• sole
• anionic
• tumour
• key
• frequent
• true
• ionic
• functional
• cationic
• actual
• heterogeneous
• effective
• possible
• male
• likely
• female
• typical
• multifunctional
• powerful
• weak
• prime
• homogeneous
• different
• peroxide
• monofunctional
• efficient
• sexual
• early
• thermal
• major
• radical
• external
• multiple
• bifunctional