Monosyllabic

Monosyllabic mono·​syl·​lab·​ic /ˌmänəsəˈlabik/ Adjective

1. consisting of only one syllable

“Just as there are polysyllabic words that say very little, so there are also monosyllabic words of infinite meaning.”

– Georg C. Lichtenberg (1742 – 1799)

2. terse, laconic

“She was as tranquil as he was agitated, as monosyllabic as he was garrulous.”

– Song of Solomon (1977), by Toni Morrison (1931 – 2019)