This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

v. Present participle of complete.

adj. serving to complete.

adj. acting as or providing a complement (something that completes the whole)

"(The role of employment in 'completing' an education is ignored by CCS who seem to believe that a graduate should be 'ready baked')."

additive   

complemental    complementary    supplemental    supplementary   

complete   

beating    cheating    competing    defeating    deleting    depleting    eating    fleeting    greeting    heating