Antonyms of adj listless

2 senses of listless

Sense 1
listless -- (lacking zest or vivacity; "he was listless and bored")

INDIRECT (VIA lethargic) -> energetic -- (possessing or exerting or displaying energy; "an energetic fund raiser for the college"; "an energetic group of hikers"; "it caused an energetic chemical reaction")

Sense 2
dispirited, listless -- (marked by low spirits; showing no enthusiasm; "a dispirited and divided Party"; "reacted to the crisis with listless resignation")

INDIRECT (VIA spiritless) -> spirited -- (displaying animation, vigor, or liveliness)

Similarity of adj listless

2 senses of listless

Sense 1
listless -- (lacking zest or vivacity; "he was listless and bored")
       => lethargic (vs. energetic), unenrgetic -- (deficient in alertness or activity; "bullfrogs became lethargic with the first cold nights")

Sense 2
dispirited, listless -- (marked by low spirits; showing no enthusiasm; "a dispirited and divided Party"; "reacted to the crisis with listless resignation")
       => spiritless (vs. spirited) -- (lacking ardor or vigor or energy; "a spiritless reply to criticism")