fundamental, radical, basic / drastic, thorough

basis, foundation

(regional, Osaka, Kyoto) the script of a kabuki drama / short for 絵入根本 (e iri nehon, “illustrated kabuki script”)

question, problem on homework etc. / a question; a matter (of time etc.) / a problem (something that needs to be dealt with); a trouble / an issue; a matter

a target, a mark, a bullseye / an objective, an object (of doing something)

as far as ... is concerned; in terms of ...

fundamentalism

(informal) no problem

unthinkable, out of the question

practical question (problem)