無くてはいけない (なくてはいけない)cannot do without something; indispensable; absolutely necessary

Kanji in 無くてはいけない

• 無Nothingness; None; Ain'tRead with its kun'yomi here

Words that share its kanji

• 無料むりょうfree (of charge); gratuitous
• 無所属むしょぞくindependent (esp. in politics); non-partisan
• 無職むしょくwithout an occupation; unemployed
• 無理むりunreasonable; unnatural
• 無罪むざいinnocence; being not guilty
• 無線むせんradio (communication)
• 有無うむexistence or nonexistence; presence or absence
• 無償むしょうwithout compensation; without reward