Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun collectible

1 sense of collectible

Sense 1
collectible, collectable -- (things considered to be worth collecting (not necessarily valuable or antique))
       => curio, curiosity, oddity, oddment, peculiarity, rarity -- (something unusual -- perhaps worthy of collecting)

Antonyms of adj collectible

1 sense of collectible

Sense 1
collectible, collectable, payable -- (subject to or requiring payment especially as specified; "a collectible bill"; "a note payable on demand"; "a check payable to John Doe")

INDIRECT (VIA due) -> undue -- (not yet payable; "an undue loan")

Similarity of adj collectible

1 sense of collectible

Sense 1
collectible, collectable, payable -- (subject to or requiring payment especially as specified; "a collectible bill"; "a note payable on demand"; "a check payable to John Doe")
       => due (vs. undue) -- (owed and payable immediately or on demand; "payment is due")