| # | Kanji | Kanji Level 4 | |||
| 548 | 極 | poles; extreme; very, quite | 1065 | ||
| きわめる | 極める | kiwameru | investigate thoroughly; carry to extremes | ||
| きわめて | 極めて | kiwamete | exceedingly; extremely | ||
| ごくじょう | 極上 | gokujoo | best, first-rate | ||
| ごっかん | 極寒 | gokkan | midwinter, intense cold | ||
| せっきょく | 積極 | sekkyoku | positive, progressive | 1096 1065 | |
| せっきょくてき | 積極的 | sekkyokutekı | active, positive, proactive |