Here's what rhymes with downstream.
dream stream leam bream ream seem cm team theme beam cream supreme deem gleam scream seam diem feem creme teem haem extreme regime scheme steam passim redeem upstream abeam agleam beseem esteem systeme inseam academe crossbeam slipstream selfesteem disesteem Words that almost rhyme with downstream
lean lien spleen preen seen mean green scene clean screen gene keen bean bien dean eine saline heen teen cn mien sheen tween beene bein feen glean hsien keine mein peine wean xylene chine ween baleen jean peen vitrine eighteen fourteen marine queen routine thirteen foreseen serene ethylene obscene ravine amine hyaline methylene agin hetween latrine purine rapine demean onscreen sardine scalene neoprene tureen careen preteen sateen sibylline beguine colleen ursine praline subteen between machine fifteen nineteen gasoline submarine unseen vaccine benzene caffeine evergreen unclean unforeseen acetylene adenine alanine ancien aniline casein cesarean cosine gelatine olivine codeine cytosine figurine naphthalene riverine mezzanine overseen sunscreen supervene tambourine gasolene mescaline tangerine woodbine aubergine umpteen astatine gamine touchscreen houseclean magazine sixteen intervene histamine kerosene nicotine amphetamine canteen carotene convene cuisine guillotine histidine subroutine creatine libertine limousine oncogene propylene theophylline thymidine aquiline philistine tourmaline windscreen caesarean cocain melamine peregrine trampoline velveteen wolverine gabardine nectarine seventeen adenosine polyethylene glutamine clonidine pyrimidine brigantine contravene ultramarine mujahideen reconvene wintergreen euclidean silkscreen antipodean grenadine calcimine quarantine cyclosporine internecine quinidine antisubmarine aquamarine brilliantine incarnadine catecholamine phenylalanine polypropylene oxyacetylene chlorpromazine