underleftrightarrow decoration none amsmath
underline decoration none
underrightarrow decoration none amsmath
+#Do not load automatically, it redefines some other symbols, and we don't
+#have a possibility to turn automatic loading off like for ams
+#undertilde decoration none accents
+undertilde decoration none
+utilde decoration none undertilde
vec decoration none
widehat decoration none
widetilde decoration none