Irrigated rhymes with:
abrogated, interrogated, segregated, abrogated, castigated, instigated, interrogated, mitigated, navigated, obligated, propagated, relegated, segregated, subjugated, unmitigated
abrogated, interrogated, segregated, abrogated, castigated, instigated, interrogated, mitigated, navigated, obligated, propagated, relegated, segregated, subjugated, unmitigated