expression, adverb
as much as possible; to the extent possible; whenever possible
Used to express doing something to the greatest degree feasible under the circumstances. Often appears in formal or written contexts.
可能な限り早くご返信ください。
Please reply as soon as possible.
可能な限り多くの情報を集めてください。
Please gather as much information as possible.
Similar meaning but slightly less emphatic; implies 'if circumstances allow' rather than pushing to the absolute limit.
Compound of 可能 (possible) + な (attributive form of copula) + 限り (limit/extent). The phrase literally means 'to the limit of what is possible'.