diff --git a/Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp b/Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp
index ecd8981458..d49c9346fb 100644
--- a/Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp
+++ b/Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp
@@ -1091,7 +1091,7 @@
 
     g29_verbose_level = parser.seen('V') ? parser.value_int() : 0;
     if (!WITHIN(g29_verbose_level, 0, 4)) {
-      SERIAL_ECHOLNPGM("?(V)erbose level is implausible (0-4).\n");
+      SERIAL_ECHOLNPGM("?(V)erbose level implausible (0-4).\n");
       err_flag = true;
     }
 
diff --git a/Marlin/src/gcode/bedlevel/abl/G29.cpp b/Marlin/src/gcode/bedlevel/abl/G29.cpp
index 667bf3e9fc..f8f51fb174 100644
--- a/Marlin/src/gcode/bedlevel/abl/G29.cpp
+++ b/Marlin/src/gcode/bedlevel/abl/G29.cpp
@@ -349,7 +349,7 @@ G29_TYPE GcodeSuite::G29() {
 
     verbose_level = parser.intval('V');
     if (!WITHIN(verbose_level, 0, 4)) {
-      SERIAL_ECHOLNPGM("?(V)erbose level is implausible (0-4).");
+      SERIAL_ECHOLNPGM("?(V)erbose level implausible (0-4).");
       G29_RETURN(false);
     }
 
@@ -370,11 +370,11 @@ G29_TYPE GcodeSuite::G29() {
       if (parser.seenval('P')) abl_grid_points_x = abl_grid_points_y = parser.value_int();
 
       if (!WITHIN(abl_grid_points_x, 2, GRID_MAX_POINTS_X)) {
-        SERIAL_ECHOLNPGM("?Probe points (X) is implausible (2-" STRINGIFY(GRID_MAX_POINTS_X) ").");
+        SERIAL_ECHOLNPGM("?Probe points (X) implausible (2-" STRINGIFY(GRID_MAX_POINTS_X) ").");
         G29_RETURN(false);
       }
       if (!WITHIN(abl_grid_points_y, 2, GRID_MAX_POINTS_Y)) {
-        SERIAL_ECHOLNPGM("?Probe points (Y) is implausible (2-" STRINGIFY(GRID_MAX_POINTS_Y) ").");
+        SERIAL_ECHOLNPGM("?Probe points (Y) implausible (2-" STRINGIFY(GRID_MAX_POINTS_Y) ").");
         G29_RETURN(false);
       }
 
diff --git a/Marlin/src/gcode/calibrate/G33.cpp b/Marlin/src/gcode/calibrate/G33.cpp
index 5eaadeb77d..effffac3dd 100644
--- a/Marlin/src/gcode/calibrate/G33.cpp
+++ b/Marlin/src/gcode/calibrate/G33.cpp
@@ -411,7 +411,7 @@ void GcodeSuite::G33() {
 
   const int8_t probe_points = parser.intval('P', DELTA_CALIBRATION_DEFAULT_POINTS);
   if (!WITHIN(probe_points, 0, 10)) {
-    SERIAL_ECHOLNPGM("?(P)oints is implausible (0-10).");
+    SERIAL_ECHOLNPGM("?(P)oints implausible (0-10).");
     return;
   }
 
@@ -419,19 +419,19 @@ void GcodeSuite::G33() {
 
   const float calibration_precision = parser.floatval('C', 0.0);
   if (calibration_precision < 0) {
-    SERIAL_ECHOLNPGM("?(C)alibration precision is implausible (>=0).");
+    SERIAL_ECHOLNPGM("?(C)alibration precision implausible (>=0).");
     return;
   }
 
   const int8_t force_iterations = parser.intval('F', 0);
   if (!WITHIN(force_iterations, 0, 30)) {
-    SERIAL_ECHOLNPGM("?(F)orce iteration is implausible (0-30).");
+    SERIAL_ECHOLNPGM("?(F)orce iteration implausible (0-30).");
     return;
   }
 
   const int8_t verbose_level = parser.byteval('V', 1);
   if (!WITHIN(verbose_level, 0, 3)) {
-    SERIAL_ECHOLNPGM("?(V)erbose level is implausible (0-3).");
+    SERIAL_ECHOLNPGM("?(V)erbose level implausible (0-3).");
     return;
   }
 
@@ -475,7 +475,7 @@ void GcodeSuite::G33() {
       const float a = RADIANS(210 + (360 / NPP) *  (axis - 1)),
                   r = delta_calibration_radius;
       if (!position_is_reachable(cos(a) * r, sin(a) * r)) {
-        SERIAL_ECHOLNPGM("?(M665 B)ed radius is implausible.");
+        SERIAL_ECHOLNPGM("?(M665 B)ed radius implausible.");
         return;
       }
     }
diff --git a/Marlin/src/gcode/calibrate/M48.cpp b/Marlin/src/gcode/calibrate/M48.cpp
index 2b5edb0919..49b43eae73 100644
--- a/Marlin/src/gcode/calibrate/M48.cpp
+++ b/Marlin/src/gcode/calibrate/M48.cpp
@@ -59,7 +59,7 @@ void GcodeSuite::M48() {
 
   const int8_t verbose_level = parser.byteval('V', 1);
   if (!WITHIN(verbose_level, 0, 4)) {
-    SERIAL_ECHOLNPGM("?(V)erbose level is implausible (0-4).");
+    SERIAL_ECHOLNPGM("?(V)erbose level implausible (0-4).");
     return;
   }
 
diff --git a/Marlin/src/gcode/config/M575.cpp b/Marlin/src/gcode/config/M575.cpp
index a90129f470..0abc8f9fea 100644
--- a/Marlin/src/gcode/config/M575.cpp
+++ b/Marlin/src/gcode/config/M575.cpp
@@ -67,7 +67,7 @@ void GcodeSuite::M575() {
       #endif
 
     } break;
-    default: SERIAL_ECHO_MSG("?(B)aud rate is implausible.");
+    default: SERIAL_ECHO_MSG("?(B)aud rate implausible.");
   }
 }