to render futile; to bring to naught; to waste; to not make good use of
to come to nothing; to be in vain; to lead nowhere
waste (of money, time, etc.); squandering; frittering away
visit for no reason; go on fool's errand
economical; efficient; lean; compact
visit for no reason; go on fool's errand
make good use of; make the most of
would be a waste of words; would be a waste of breath; there's no point in saying
always listen to your parents; always value your parents' advice; (lit.) not even one in a thousand of a parents' opinion or an eggplant flower are in vain