Antonyms of adj monotonous

2 senses of monotonous

Sense 1
humdrum, monotonous -- (tediously repetitious or lacking in variety; "a humdrum existence; all work and no play"; "nothing is so monotonous as the sea")

INDIRECT (VIA dull) -> lively -- (full of life and energy; "a lively discussion"; "lively and attractive parents"; "a lively party")

Sense 2
flat, monotone, monotonic, monotonous -- (sounded or spoken in a tone unvarying in pitch; "the owl's faint monotonous hooting")

INDIRECT (VIA unmodulated) -> modulated -- (changed or adjusted in pitch, tone, or volume)

Similarity of adj monotonous

2 senses of monotonous

Sense 1
humdrum, monotonous -- (tediously repetitious or lacking in variety; "a humdrum existence; all work and no play"; "nothing is so monotonous as the sea")
       => dull (vs. lively) -- (lacking in liveliness or animation; "he was so dull at parties"; "a dull political campaign"; "a large dull impassive man"; "dull days with nothing to do"; "how dull and dreary the world is"; "fell back into one of her dull moods")

Sense 2
flat, monotone, monotonic, monotonous -- (sounded or spoken in a tone unvarying in pitch; "the owl's faint monotonous hooting")
       => unmodulated (vs. modulated) -- (characterized by lack of variation in pitch, tone, or volume; "he lectured in an unmodulated voice edged with hysteria")