Indispensible rhymes with:
incomprehensible, incomprehensible, dulcibelle, impermissible, incomprehensible, indivisible, irascible, submersible, anibal, berkebile, bonnibel, bonnibelle, contibel, corruptible, dulcibelle, extendible, fungible, hannibal, imperceptible, impermissible, incomprehensible, incontrovertible, indelible, indestructible, indivisible, interruptible, irascible, nondeductible, submersible, unadjustable, uncollectible