diff --git a/libraries/stdlib/js/src/generated/_ArraysJs.kt b/libraries/stdlib/js/src/generated/_ArraysJs.kt
index 500c0625a36..e59bc2f669e 100644
--- a/libraries/stdlib/js/src/generated/_ArraysJs.kt
+++ b/libraries/stdlib/js/src/generated/_ArraysJs.kt
@@ -101,7 +101,6 @@ public actual fun CharArray.asList(): List<Char> {
  */
 @SinceKotlin("1.1")
 @library("arrayDeepEquals")
-@Suppress("UNUSED_PARAMETER")
 public actual infix fun <T> Array<out T>.contentDeepEquals(other: Array<out T>): Boolean {
     definedExternally
 }
@@ -139,7 +138,6 @@ public actual fun <T> Array<out T>.contentDeepToString(): String {
  */
 @SinceKotlin("1.1")
 @library("arrayEquals")
-@Suppress("UNUSED_PARAMETER")
 public actual infix fun <T> Array<out T>.contentEquals(other: Array<out T>): Boolean {
     definedExternally
 }
@@ -150,7 +148,6 @@ public actual infix fun <T> Array<out T>.contentEquals(other: Array<out T>): Boo
  */
 @SinceKotlin("1.1")
 @library("arrayEquals")
-@Suppress("UNUSED_PARAMETER")
 public actual infix fun ByteArray.contentEquals(other: ByteArray): Boolean {
     definedExternally
 }
@@ -161,7 +158,6 @@ public actual infix fun ByteArray.contentEquals(other: ByteArray): Boolean {
  */
 @SinceKotlin("1.1")
 @library("arrayEquals")
-@Suppress("UNUSED_PARAMETER")
 public actual infix fun ShortArray.contentEquals(other: ShortArray): Boolean {
     definedExternally
 }
@@ -172,7 +168,6 @@ public actual infix fun ShortArray.contentEquals(other: ShortArray): Boolean {
  */
 @SinceKotlin("1.1")
 @library("arrayEquals")
-@Suppress("UNUSED_PARAMETER")
 public actual infix fun IntArray.contentEquals(other: IntArray): Boolean {
     definedExternally
 }
@@ -183,7 +178,6 @@ public actual infix fun IntArray.contentEquals(other: IntArray): Boolean {
  */
 @SinceKotlin("1.1")
 @library("arrayEquals")
-@Suppress("UNUSED_PARAMETER")
 public actual infix fun LongArray.contentEquals(other: LongArray): Boolean {
     definedExternally
 }
@@ -194,7 +188,6 @@ public actual infix fun LongArray.contentEquals(other: LongArray): Boolean {
  */
 @SinceKotlin("1.1")
 @library("arrayEquals")
-@Suppress("UNUSED_PARAMETER")
 public actual infix fun FloatArray.contentEquals(other: FloatArray): Boolean {
     definedExternally
 }
@@ -205,7 +198,6 @@ public actual infix fun FloatArray.contentEquals(other: FloatArray): Boolean {
  */
 @SinceKotlin("1.1")
 @library("arrayEquals")
-@Suppress("UNUSED_PARAMETER")
 public actual infix fun DoubleArray.contentEquals(other: DoubleArray): Boolean {
     definedExternally
 }
@@ -216,7 +208,6 @@ public actual infix fun DoubleArray.contentEquals(other: DoubleArray): Boolean {
  */
 @SinceKotlin("1.1")
 @library("arrayEquals")
-@Suppress("UNUSED_PARAMETER")
 public actual infix fun BooleanArray.contentEquals(other: BooleanArray): Boolean {
     definedExternally
 }
@@ -227,7 +218,6 @@ public actual infix fun BooleanArray.contentEquals(other: BooleanArray): Boolean
  */
 @SinceKotlin("1.1")
 @library("arrayEquals")
-@Suppress("UNUSED_PARAMETER")
 public actual infix fun CharArray.contentEquals(other: CharArray): Boolean {
     definedExternally
 }
diff --git a/libraries/stdlib/js/src/kotlin/collections/ArrayList.kt b/libraries/stdlib/js/src/kotlin/collections/ArrayList.kt
index 6bd9fee887c..4d5582577aa 100644
--- a/libraries/stdlib/js/src/kotlin/collections/ArrayList.kt
+++ b/libraries/stdlib/js/src/kotlin/collections/ArrayList.kt
@@ -34,7 +34,7 @@ public actual open class ArrayList<E> internal constructor(private var array: Ar
      * Creates an empty [ArrayList].
      * @param initialCapacity initial capacity (ignored)
      */
-    public actual constructor(@Suppress("UNUSED_PARAMETER") initialCapacity: Int) : this(emptyArray()) {}
+    public actual constructor(initialCapacity: Int) : this(emptyArray()) {}
     /**
      * Creates an [ArrayList] filled from the [elements] collection.
      */
@@ -43,7 +43,7 @@ public actual open class ArrayList<E> internal constructor(private var array: Ar
     /** Does nothing in this ArrayList implementation. */
     public actual fun trimToSize() {}
     /** Does nothing in this ArrayList implementation. */
-    public actual fun ensureCapacity(@Suppress("UNUSED_PARAMETER") minCapacity: Int) {}
+    public actual fun ensureCapacity(minCapacity: Int) {}
 
     actual override val size: Int get() = array.size
     actual override fun get(index: Int): E = array[rangeCheck(index)] as E
diff --git a/libraries/stdlib/js/src/kotlin/concurrent.kt b/libraries/stdlib/js/src/kotlin/concurrent.kt
index f3469a7e9a3..98cfdd51b6a 100644
--- a/libraries/stdlib/js/src/kotlin/concurrent.kt
+++ b/libraries/stdlib/js/src/kotlin/concurrent.kt
@@ -23,4 +23,4 @@ public typealias Synchronized = kotlin.jvm.Synchronized
 public typealias Volatile = kotlin.jvm.Volatile
 
 @kotlin.internal.InlineOnly
-public actual inline fun <R> synchronized(@Suppress("UNUSED_PARAMETER") lock: Any, block: () -> R): R = block()
+public actual inline fun <R> synchronized(lock: Any, block: () -> R): R = block()
diff --git a/libraries/stdlib/js/src/kotlin/text.kt b/libraries/stdlib/js/src/kotlin/text.kt
index 78fdb7ee7ef..68a95ef79fc 100644
--- a/libraries/stdlib/js/src/kotlin/text.kt
+++ b/libraries/stdlib/js/src/kotlin/text.kt
@@ -24,7 +24,7 @@ public actual interface Appendable {
 }
 
 public actual class StringBuilder(content: String) : Appendable, CharSequence {
-    actual constructor(@Suppress("UNUSED_PARAMETER") capacity: Int) : this() {}
+    actual constructor(capacity: Int) : this() {}
 
     actual constructor(content: CharSequence) : this(content.toString()) {}
 
diff --git a/libraries/tools/kotlin-stdlib-gen/src/templates/Arrays.kt b/libraries/tools/kotlin-stdlib-gen/src/templates/Arrays.kt
index 8cc4aeecb3e..fee892d1894 100644
--- a/libraries/tools/kotlin-stdlib-gen/src/templates/Arrays.kt
+++ b/libraries/tools/kotlin-stdlib-gen/src/templates/Arrays.kt
@@ -82,7 +82,6 @@ object ArrayOps : TemplateGroupBase() {
 
         on(Platform.JS) {
             annotation("""@library("arrayEquals")""")
-            annotation("""@Suppress("UNUSED_PARAMETER")""")
             body { "definedExternally" }
         }
     }
@@ -108,7 +107,6 @@ object ArrayOps : TemplateGroupBase() {
         }
         on(Platform.JS) {
             annotation("""@library("arrayDeepEquals")""")
-            annotation("""@Suppress("UNUSED_PARAMETER")""")
             body { "definedExternally" }
         }
     }