erroneous：错误的，不正确的  

词根词缀： -err-错误 +one + -ous形容词词尾

• inspection
• inspector
• inspectorate
• inspiration
• inspire
• inspiring
• inspirit
• instability
• instalation
• install
• installation
• installment
• installment plan
• instalment
• instance
• instant
• instantaneous
• instead
• instep
• instigate
• instigation
• instigator
• instill
• instinct
• instinctive