nose–dive

to go to a lower level especially abruptly prices on just about everything nose-dived right after the holidays Synonyms crash, crater, decline, descend, dip, dive, fall, lower, nose-dive, plummet, plunge, sink, skid, tumbleRelated Words abate, decrease, de-escalate, die (down), diminish, droop, dwindle, ebb, lessen, let up, moderate, subside, taper off, wane; recede, retreatNear Antonyms accumulate, balloon, build, burgeon (also bourgeon), enlarge, escalate, expand, grow, increase, intensify, mushroom, pick up, snowball, swell, waxAntonyms arise, ascend, lift, mount, rise, soar, spike, up