Antonyms of adj steel-plated

1 sense of steel-plated

Sense 1
armor-clad, armour-clad, armor-plated, armour-plated, steel-plated -- (covered with heavy steel; "armor-plated vehicles")

INDIRECT (VIA armored) -> unarmored, unarmoured -- ((used of persons or things military) without protective armor)

Similarity of adj steel-plated

1 sense of steel-plated

Sense 1
armor-clad, armour-clad, armor-plated, armour-plated, steel-plated -- (covered with heavy steel; "armor-plated vehicles")
       => armored (vs. unarmored), armoured -- (protected by armor (used of persons or things military))