完成【かんせい】
completion, perfection, accomplishment
完全【かんぜん】
perfect, complete
完了【かんりょう】
completion, conclusion, perfect (tense, form, aspect)
完敗【かんぱい】
(suffering a) complete defeat, utter defeat, annihilation
完結【かんけつ】
conclusion, completion
不完全【ふかんぜん】
imperfect, incomplete, faulty, defective
未完成【みかんせい】
incomplete, unfinished, imperfect
完遂【かんすい】
successful execution, accomplishment, completion, fulfillment, carrying through