undergrowth undergrown • undergrub · · · Info · Definitions · Synonyms · Characters · · undergrowth · · Text Latin · · Script 11 · · Length 3 · · Syllables Definitions · · · (noun) the brush (small trees and bushes and ferns etc.) growing beneath taller trees in a wood or forest. Synonyms: underbrush, underwood. · · Noun Definition 1 Synonyms · · · underbrush · · Synonym 1 underwood · · Synonym 2 Characters · · d latin small letter d U+0064 e latin small letter e U+0065 g latin small letter g U+0067 h latin small letter h U+0068 n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075 w latin small letter w U+0077