足らない

たらないtaranai

i-adjective

  1. insufficient
  2. not enough
  3. lacking
  4. dim-witted
  5. slow
  6. stupid

Kanji in this word

Study it in Yanamino

Data from JMdict, KANJIDIC2 (EDRDG), KanjiVG, CC-CEDICT and Make Me a Hanzi. Sources and licences