Antonyms of adj most-valuable

1 sense of most-valuable

Sense 1
most-valuable -- (designating the player judged to be the most important to the sport; "the most-valuable player award")

INDIRECT (VIA important) -> unimportant -- (not important; "a relatively unimportant feature of the system"; "the question seems unimportant")

Similarity of adj most-valuable

1 sense of most-valuable

Sense 1
most-valuable -- (designating the player judged to be the most important to the sport; "the most-valuable player award")
       => important (vs. unimportant), of import -- (of great significance or value; "important people"; "the important questions of the day")