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

4 senses of rust

Sense 1
rust -- (a red or brown oxide coating on iron or steel caused by the action of oxygen and moisture)
       => ferric oxide -- (a red oxide of iron)

Sense 2
rust -- (a plant disease that produces a reddish-brown discoloration of leaves and stems; caused by various rust fungi)
       => plant disease -- (a disease that affects plants)

Sense 3
rust, rusting -- (the formation of reddish-brown ferric oxides on iron by low-temperature oxidation in the presence of water)
       => corrosion, corroding, erosion -- (erosion by chemical action)
       => oxidation, oxidization, oxidisation -- (the process of oxidizing; the addition of oxygen to a compound with a loss of electrons; always occurs accompanied by reduction)

Sense 4
rust, rust fungus -- (any of various fungi causing rust disease in plants)
       => fungus -- (an organism of the kingdom Fungi lacking chlorophyll and feeding on organic matter; ranging from unicellular or multicellular organisms to spore-bearing syncytia)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb rust

3 senses of rust

Sense 1
corrode, rust -- (become destroyed by water, air, or a corrosive such as an acid; "The metal corroded"; "The pipes rusted")
       => decay, crumble, dilapidate -- (fall into decay or ruin; "The unoccupied house started to decay")

Sense 2
corrode, eat, rust -- (cause to deteriorate due to the action of water, air, or an acid; "The acid corroded the metal"; "The steady dripping of water rusted the metal stopper in the sink")
       => damage -- (inflict damage upon; "The snow damaged the roof"; "She damaged the car when she hit the tree")

Sense 3
rust -- (become coated with oxide)
       => oxidise, oxidize, oxidate -- (enter into a combination with oxygen or become converted into an oxide; "This metal oxidizes easily")

Antonyms of adj rust

1 sense of rust

Sense 1
rust, rusty, rust-brown -- (of the brown color of rust)

INDIRECT (VIA chromatic) -> achromatic, neutral -- (having no hue; "neutral colors like black or white")

Similarity of adj rust

1 sense of rust

Sense 1
rust, rusty, rust-brown -- (of the brown color of rust)
       => chromatic (vs. achromatic) -- (being or having or characterized by hue)