Drawdown rhymes with:
ashdown, blastdown, breakdown, clampdown, closedown, comedown, countdown, crackdown, godown, hillsdown, hoedown, knockdown, lansdowne, letdown, lockdown, lowdown, markdown, meltdown, piltdown, putdown, rundown, shakedown, shootdown, showdown, shutdown, slowdown, southdown, sundown, touchdown, turndown, underdown, writedown
Drawdown sounds like:
darden, darton, dearden, dehydration, derden, deterioration, dorton, drayton, dryden, duration, durden, durdin