bold handwriting; thick brush strokes
Describes writing or calligraphy done with thick, bold strokes. Can also refer to a person's handwriting style.
彼の筆太な字は読みやすい。
His bold handwriting is easy to read.
筆太に名前を書いた
I wrote my name in thick strokes.
Compound of 筆 (fude, 'brush') and 太 (futo, 'thick').