From marah; bitterness, i.e. (figuratively) rebellion; concretely, bitter, or rebellious -- bitter, (most) rebel(-lion, -lious).
see HEBREW marah
H4805. meri
מְרִי noun masculineProverbs 17:11 rebellion; — מְרִי Isaiah 30:9-10t.; מֶ֑רִי Numbers 17:25 9t.; suffix מֶרְיְךָ Deuteronomy 31:27; מִרְיָם Nehemiah 9:17; — rebellion Deuteronomy 31:27; 1 Samuel 15:23; Nehemiah 9:17; Job 23:2 מרי עם rebellious people Isaiah 30:9; (ה)מרי בית rebellious house (referring to Israel) Ezekiel 2:5-6, 8; 3:9, 26, 27; 12:2 (twice in verse); 12:3, 9, 25; 17:12; 24:3, בית omitted (restored by Co) 2:7; 44:6; מרי בְּנֵי rebellious sons Numbers 17:25 (P); with omission of בֵּן (or abstract for concrete), מֶ֑רִיאל תהי be not a rebellious person 2:8; רע יבקּשׁ מרי אך a rebellious man seeketh only evil Proverbs 17:11.