How to say "Not" in Japanese

When translating "not" into Japanese, you must choose carefully between まんざらでもない and とうてい. In Japanese, まんざらでもない (まんざらでもない (manzara demo nai)) is typically associated with "not bad, not entirely displeased, rather good (often with a hint of feigned indifference)" (Syllabus Level: N2) and represents A phrase used to express that something is actually quite good or pleasing, despite perhaps outwardly acting as if one is indifferent or critical. It conveys a subtle sense of satisfaction or quiet approval.. On the other hand, とうてい (とうてい (toutei)) maps to "(not) possibly, by no means" (Syllabus Level: C1) and represents Essential structural term in CEFR C1 vocabulary syllabus.. A literal translation of "not" can often sound unnatural to native Japanese speakers if mixed up!