How to say "Not" in Japanese

When translating "not" into Japanese, you must choose carefully between そんなに and 一向に. In Japanese, そんなに (そんなに (sonnani)) is typically associated with "(not) so much; (not) that much" (Syllabus Level: N3) and represents Often used with negative expressions. On the other hand, 一向に (いっこうに (ikkou ni)) maps to "not at all, utterly, entirely (usually with negative)" (Syllabus Level: N2) and represents Always used with a negative verb or adjective to emphasize 'not at all,' 'not in the least.' It expresses a complete lack of progress, change, or effect, often despite expectations or efforts.. A literal translation of "not" can often sound unnatural to native Japanese speakers if mixed up!