Here's what rhymes with impourveu.
who shoe zu shew su sue vous fu zoo hu seu shu sou vu feu shou thu vou shoo thew to you do two new through too few view due knew du u threw coup flew qu dew hue lieu tu chew deux flue lu rue slew stew bu flu ju jus ku loo mu nu peu pu thru woo yew yu boo chou chu coo cou doo ewe fue gu hew ru shrew tue tzu vue wou wu goo moo pooh poo gnu roux slue whew phew true blue drew grew que crew pursue blew q screw anew clue cue glue queue cu ensue adieu ado brew pew skew eschew mieux outdo sprue vnto clew mew strew halloo spew valuer zebu kazoo wazoo achoo into review interview avenue bamboo canoe renew undue accrue debut subdue taboo undo jusqu overdue piu tattoo beaucoup revue shampoo sinew askew imbue outgrew overdo redo ballyhoo endue foreknew indue overshoe prevue booboo atishoo revenue hitherto overview residue withdrew rendezvous untrue overthrew honeydew bugaboo fondue marabou peekaboo bestrew buckaroo muumuu overflew overdrew overgrew regrew retinue caribou construe kangaroo cockatoo superglue barbecue hullabaloo barbeque misconstrue