திடீரெனல் -
திடீரிடுதல், v. n. being quick, prompt, speedy; 2. sounding (as occasioned by a heavy fall).
திடீரென, adv. (inf.) precipitantly, suddenly, promptly, instantaneously. திடீரென்று குதிக்க, to jump down, to plunge into suddenly. திடீரென்றுவிழ, to fall all of a sudden, unexpectedly. திடீர்திடீரெனல், v. n. reiteration of a thumping sound.