completely; absolutely; totally
Emphatic adverb, most often in the form 一向に. In affirmative contexts it commonly means that a state is completely so, often with expressions such as 平気だ or 構わない.
See also: 一向に
彼はその知らせを聞いても一向に平気だった。
Even after hearing the news, he was completely unfazed.
Used in negative sentences as 一向に〜ない to stress that something does not happen, change, improve, or matter at all.
Even after taking medicine, my fever does not go down at all.
earnestly; intently; single-mindedly
Less common in modern everyday Japanese. This older or literary adverbial use means directing oneself wholeheartedly toward one thing, rather than the modern negative 一向に〜ない pattern.
In older Buddhist contexts, 一向に念仏する means to devote oneself single-mindedly to chanting the nenbutsu.
Jōdo Shinshū; Ikkō sect
Abbreviation of 一向宗, used mainly in historical or religious contexts, especially in terms connected with medieval Jōdo Shinshū groups.
See also: 一向宗
The Ikkō in Ikkō-ikki refers to the Ikkō sect, or Jōdo Shinshū.
My illness isn't getting better at all.
I don't mind at all.
Even after failing, he looked completely unbothered.