detriment /ˈdɛtɹɪmənt/noun 4verb 1forms 3 noun4 •Harm, hurt, damage."Would it be fair to say that when it came to making trouble, you'd make up for what you didn't absolutely know . . . and to our detriment?" — 2011 •The position or state of a planet when it is in the sign opposite its house, considered to weaken it.DEJECTION [with Astrol.] said of the planets, when in their detriment, i.e. when they have lost their force or influence by reason of being in opposition to some other, which check and contract them. — 1730 •The position or state of being eclipsed, entirely dark (sable).Argent, a Moon in her detriment or Eclipse Sable[…] — 1693 •(UK, no longer used) A charge made to students and barristers for incidental repairs of the rooms they occupy. verb1 •(no longer used) To be detrimental to; to harm or mar. formsdetrimented · detrimenting · detriments