#1 headlong r. [headfirst] with the head foremost; "the runner slid headlong into third base". wn
#2 headlong s. [hasty] excessively quick; "made a hasty exit"; "a headlong rush to sell". wn
#3 headlong s. [headfirst] with the head foremost; "a headfirst plunge down the stairs"; "a headlong dive into the pool". wn
#4 headlong r. [precipitately] at breakneck speed; "burst headlong through the gate". wn
#5 headlong r. [rashly] in a hasty and foolhardy manner; "he fell headlong in love with his cousin". wn
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