jmdict 2538840 Active (id#2328516)
碌でもない [ateji,rK] ； 陸でもない [rK] ； 碌でも無い [sK] ； ろくでも無い [sK] ； 六でもない [sK]
【 ろくでもない； ロクでもない (nokanji) 】
  1. [exp,adj-i] [uk]
    • good-for-nothing
    • useless
    • worthless
Conjugations
History:
    • A 2024-12-24 09:54:56 Jim Breen (id#2328516)
    • A* 2024-12-24 09:39:18 parfait8 (id#2328512)
    • Refs
      Google N-gram Corpus Counts
╭─ーーーーーー─┬────────┬───────╮
│ 碌でもない　 │  3,063 │  2.9% │ add rK
│ 陸でもない　 │    176 │  0.2% │
│ 碌でも無い　 │    313 │  0.3% │
│ ろくでも無い │    896 │  0.8% │
│ 六でもない　 │    379 │  0.4% │
│ ろくでもない │ 73,758 │ 68.7% │
│ ロクでもない │ 28,726 │ 26.8% │ add
╰─ーーーーーー─┴────────┴───────╯
    • Diff
      @@ -6,0 +7 @@
+<ke_inf>&rK;</ke_inf>
@@ -25,0 +27,4 @@
+</r_ele>
+<r_ele>
+<reb>ロクでもない</reb>
+<re_nokanji/>
    • A 2024-11-11 01:19:33 Robin Scott (id#2320893)
    • Comments
      The rK threshold is <3%.
碌でも無い can be hidden. We typically hide -無い forms if they're rare.
    • Diff
      @@ -6,0 +7,3 @@
+</k_ele>
+<k_ele>
+<keb>陸でもない</keb>
@@ -11,6 +14 @@
-<ke_inf>&ateji;</ke_inf>
-<ke_inf>&rK;</ke_inf>
-</k_ele>
-<k_ele>
-<keb>陸でもない</keb>
-<ke_inf>&rK;</ke_inf>
+<ke_inf>&sK;</ke_inf>
    • A* 2024-11-09 13:40:46 Sombrero1 (id#2320700)
    • Comments
      The thought of writing this as 六でもない just randomly struck me.
    • Refs
      Google N-gram Corpus Counts
╭─ーーーーーー─┬────────┬───────╮
│ 碌でもない　 │  3.063 │  3.9% │[rK], [ateji]
│ ろくでも無い │    896 │  1.1% │add, [sK]
│ 六でもない　 │    379 │  0.5% │Probably 変換ミス. While this would be [iK], it should probably be [sK], right?
│ 碌でも無い　 │    313 │  0.4% │add, [rK], [ateji] ; prog, oukoku, shinsen
│ 陸でもない　 │    176 │  0.2% │
│ 陸でも無い　 │      0 │  0.0% │
│ ろくでもない │ 73.758 │ 93.9% │
╰─ーーーーーー─┴────────┴───────╯
Daijt: "...（「碌」はあて字）..." ⇒ also marked in sankoku and koj

Compare to the 碌で無し entry where the 碌 forms are also marked as [ateji]. Also the word 碌・ろく itself is marked as [ateji].
    • Diff
      @@ -5,0 +6,7 @@
+<ke_inf>&ateji;</ke_inf>
+<ke_inf>&rK;</ke_inf>
+</k_ele>
+<k_ele>
+<keb>碌でも無い</keb>
+<ke_inf>&ateji;</ke_inf>
+<ke_inf>&rK;</ke_inf>
@@ -9,0 +17,8 @@
+</k_ele>
+<k_ele>
+<keb>ろくでも無い</keb>
+<ke_inf>&sK;</ke_inf>
+</k_ele>
+<k_ele>
+<keb>六でもない</keb>
+<ke_inf>&sK;</ke_inf>
    • A 2022-01-21 12:39:51 Robin Scott
    • Refs
      gg5, prog
    • Diff
      @@ -8,0 +9 @@
+<ke_inf>&rK;</ke_inf>
@@ -17,0 +19 @@
+<gloss>useless</gloss>
  6. (show/hide 2 older history records)
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