This is the 5460th most frequent Japanese word.
いかんなく
"いかんなく" means "to the fullest" or "without holding back."
In this sentence, 'いかんなく' is used to emphasize the thorough and effective expression of one's abilities, highlighting their full utilization.
彼は自分の能力をいかんなく発揮した。
He demonstrated his ability thoroughly.
Here, 'いかんなく' conveys the notion of pointing out or articulating something in a manner that is completely accurate and comprehensive.
問題の本質をいかんなく指摘する。
Pointing out the essence of the problem clearly.
In this instance, 'いかんなく' signals the unhindered and full development or display of creativity in an opportune condition.