underbrush underbrim • underbubble · · · Info · Definitions · Synonyms · Characters · · underbrush · · Text Latin · · Script 10 · · Length 3 · · Syllables Definitions · · · (noun) the brush (small trees and bushes and ferns etc.) growing beneath taller trees in a wood or forest. Synonyms: undergrowth, underwood. · · Noun Definition 1 Synonyms · · · undergrowth · · Synonym 1 underwood · · Synonym 2 Characters · · b latin small letter b U+0062 d latin small letter d U+0064 e latin small letter e U+0065 h latin small letter h U+0068 n latin small letter n U+006E r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075