monotonous
adj.
1750, of sound, from Greek monotonos "of one tone" (see monotony). Transferred and figurative use, "lacking in variety, uninteresting," is from 1783. Related: Monotonously.
〔李〕[mono-;ton;-ousa.] a.单音调的； 单调的 ←ton (L tonus)=sound, tone 声音
〔蒋〕[ton音，-ous…的] 单调的，单音调的