Talking to him is pointless.
Crying won't do any good.
after all; in the end; anyway · (not) possibly; (not) at all; (not) by any means
prying; inquiry; investigation
way; method; means
discussion; deliberation; consideration · investigation; inquiry; questioning
unavoidable; no help for it; pointless to resist
cannot be helped; unavoidable; nothing one can do
A Sino-Japanese reading of 詮, originally meaning a thorough explanation or the essential point of a matter. Its senses “means,” “effect,” and “worth” developed from the idea of an effective or conclusive result.