根強い (ねづよい) — deep-rooted, firmly established, persistent

根ね強づよい deep-rooted

Frequency #7733 Frequency rank among common Japanese words. Lower number = more common. Grade 3 Japanese school grade level in which this kanji is taught. Grade 1 is first year of elementary school. 3 characters 和語 wago 和語 (wago) — Native Japanese compound: all kanji use kun'yomi (native Japanese) readings. i-adjective Part of speech (JMdict: adj-i)

nezuyoi

Pitch高低アクセント — Tokyo-dialect pitch accent. The number is the drop position: 0 = heiban (no drop), 1 = atamadaka (drops after 1st mora), N = drops after Nth mora. The line above each mora marks high pitch; below, low. ねづよい[3] nakadaka 中高

Synth audio is approximate — the diagram is the canonical reference.