Here's what rhymes with nonpermutation.
mutation permutation nation station rotation aeration operation relation duration location radiation liberation irritation notation incubation probation aberration adoration citation donation iteration oration reparation sedation usurpation ablation dilation elation flotation gradation education situation creation generation interpretation foundation occupation preparation separation admiration deviation elevation invitation limitation migration restoration taxation agitation allocation alteration aspiration decoration degradation imitation irrigation meditation plantation quotation respiration saturation temptation termination vacation vibration annihilation approbation aviation causation cessation dilatation elaboration federation fermentation graduation irradiation litigation maturation mediation moderation narration negation toleration validation vocation allegation amputation appellation automation damnation deputation elucidation emulation germination gestation hydration imputation perforation perturbation recitation refutation summation ulceration information population application communication consideration formation association circulation cooperation corporation legislation observation publication reputation translation variation activation adaptation appreciation compensation correlation declaration illustration immigration implementation indication inflation innovation inspiration isolation motivation obligation orientation realization revelation salvation sensation stimulation violation accommodation alienation anticipation appropriation arbitration celebration collaboration computation condemnation consolidation consultation contemplation continuation delegation dissertation domination estimation excitation fixation frustration hesitation illumination implication inclination inflammation initiation medication navigation nomination oxidation penetration propagation recreation regeneration reservation simulation utilization valuation vegetation accusation affiliation affirmation aggregation animation annexation attenuation calibration condensation dedication deliberation deprivation derivation desolation desperation dislocation dissipation emigration evaporation expiration filtration habitation importation insulation ionization mobilization modernization modulation optimization ordination oscillation realisation reformation remuneration replication retaliation retardation starvation veneration abbreviation adjudication affectation alternation amalgamation augmentation bifurcation castration commendation confederation connotation coronation demarcation deportation devastation divination duplication elongation enumeration eradication fluctuation gravitation immunization implantation inhalation innervation intimation intimidation intonation invocation liquidation masturbation ornamentation ovulation perspiration punctuation relocation renovation repudiation revocation sanitation sedimentation stagnation urbanization utilisation visitation organization combination concentration conversation determination evaluation imagination integration participation presentation regulation accumulation conservation cultivation demonstration exploitation exploration formulation modification organisation preservation transportation assimilation confirmation confrontation congregation contamination deformation degeneration depreciation designation destination deterioration documentation elimination emancipation incorporation indignation installation manifestation manipulation negotiation proclamation proliferation recommendation registration relaxation resignation segregation speculation ventilation articulation assassination authorization compilation complication consolation denomination dissociation distillation exaggeration fabrication fascination generalization humiliation incarnation infiltration multiplication notification polarization preoccupation ratification unification argumentation cancellation conciliation conformation constipation consummation culmination dehydration delineation denunciation devaluation escalation exaltation exhortation fertilization fibrillation inactivation inauguration inoculation instrumentation interpolation interrogation menstruation mortification nationalization normalization prolongation provocation reclamation refrigeration regurgitation resuscitation segmentation standardization stipulation subjugation supplementation vaccination vindication administration explanation civilization investigation representation transformation calculation configuration differentiation expectation acceleration approximation coordination precipitation rehabilitation amplification certification civilisation coagulation colonization dissemination evacuation excavation fragmentation globalization gratification intoxication liberalization localization privatization pronunciation purification signification socialization sophistication specialization stabilization subordination transplantation verification authentication capitulation categorization centralization confiscation conflagration consecration constellation consternation democratization deregulation dispensation exclamation exportation extermination hybridization magnetization magnification personification polymerization rationalization renunciation sterilization examination classification identification discrimination justification characterization qualification reconciliation specification clarification disintegration experimentation reorganization stratification calcification capitalization crystallization diversification excommunication hospitalization intensification quantification simplification synchronization visualization conceptualization decentralization industrialization misrepresentation Words that almost rhyme with nonpermutation
basin haven hasten occasion evasion equation invasion persuasion taken pagan bacon patron shaken laden maiden layman laymen shaman mistaken awaken straighten undertaken statesman salesman contagion overtaken tradesmen forsaken