diff --git a/Makefile b/Makefile
index 466094a..331ea14 100644
--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,7 @@ query:
 	swipl -c wn_query.pl
 
 valid:
-	@echo Checking symmetry and antisymmetry ...
+	@echo Checking symmetry and asymmetry ...
 	swipl -c wn_valid.pl
 
 csv:
diff --git a/README.md b/README.md
index 81b470b..4e0f406 100644
--- a/README.md
+++ b/README.md
@@ -73,7 +73,7 @@ _wn_valid.pl_ is a SWI-prolog program testing for some potential issues in WordN
 
 - check_keys: ambiguous sense keys, pointing to more than one synset
 - symcheck: missing symmetry in the symmetric relations
-- antisymcheck: direct loops in the antisymmetric relations
+- asymcheck: direct loops in the asymmetric relations
 - hypself: self-hyponymous word forms
 - check_duplicates: find duplicate clauses
 
diff --git a/output/wn_valid.pl-Output-3.0BF b/output/wn_valid.pl-Output-3.0BF
index 6be4880..1f5a871 100644
--- a/output/wn_valid.pl-Output-3.0BF
+++ b/output/wn_valid.pl-Output-3.0BF
@@ -42,18 +42,18 @@ OK
 Checking symmetry in vgp relation (wn_vgp.pl):
 OK
 
-Antisymmetric relations: [hyp,ins,mm,mp,ms,cls]
-Checking antisymmetry in hyp relation (wn_hyp.pl):
+Asymmetric relations: [hyp,ins,mm,mp,ms,cls]
+Checking asymmetry in hyp relation (wn_hyp.pl):
 OK
-Checking antisymmetry in ins relation (wn_ins.pl):
+Checking asymmetry in ins relation (wn_ins.pl):
 OK
-Checking antisymmetry in mm relation (wn_mm.pl):
+Checking asymmetry in mm relation (wn_mm.pl):
 OK
-Checking antisymmetry in mp relation (wn_mp.pl):
+Checking asymmetry in mp relation (wn_mp.pl):
 OK
-Checking antisymmetry in ms relation (wn_ms.pl):
+Checking asymmetry in ms relation (wn_ms.pl):
 OK
-Checking antisymmetry in cls relation (wn_cls.pl):
+Checking asymmetry in cls relation (wn_cls.pl):
 Looping cls-t:
   from 103082979-0 (a machine for performing calculations automatically)
     to 106128570-0 (the branch of engineering science that studies (with the aid of computers) computable processes and structures)
diff --git a/wn_valid.pl b/wn_valid.pl
index abdeb25..47e6701 100644
--- a/wn_valid.pl
+++ b/wn_valid.pl
@@ -6,7 +6,7 @@
 
 - check_keys: ambiguous sense keys, pointing to more than one synset
 - symcheck: missing symmetry in the symmetric relations
-- antisymcheck: direct loops in the antisymmetric relations
+- asymcheck: direct loops in the asymmetric relations
 - hypself: self-hyponymous word forms
 - check_duplicates: find duplicate clauses
 */
@@ -74,36 +74,36 @@
   nl.
 
 /* ------------------------------------------
-Antisymmetry test:
+Asymmetry test:
 ------------------------------------------ */
 
-antisymrels(['hyp','ins','mm','mp','ms','cls']).
+asymrels(['hyp','ins','mm','mp','ms','cls']).
 
-antisymrel(cls):-
+asymrel(cls):-
   cls(A,AN,B,BN,T),
   cls(B,BN,A,AN,T),
   glosspair(A,B,G1,G2),
   writef('Looping cls-%w:\n  from %w-%w (%w)\n    to %w-%w (%w)\n',[T,A,AN,G1,B,BN,G2]),
   false.
-antisymrel(R):-
+asymrel(R):-
   R\=cls,
   apply(R,[A,B]),
   apply(R,[B,A]),
   glosspair(A,B,G1,G2),
   writef('Looping %w:\n  from %w (%w)\n    to %w (%w)\n',[R,A,G1,B,G2]),
   false.
-antisymrel(_):-
+asymrel(_):-
   ok.
 
-antisymcheck:-
-  antisymrels(L),
-  writef('Antisymmetric relations: %w\n',[L]),
+asymcheck:-
+  asymrels(L),
+  writef('Asymmetric relations: %w\n',[L]),
   member(R,L),
   swritef(F,'wn_%w.pl',[R]),
-  writef('Checking antisymmetry in %w relation (%w):\n',[R,F]),
-  antisymrel(R),
+  writef('Checking asymmetry in %w relation (%w):\n',[R,F]),
+  asymrel(R),
   false.
-antisymcheck:-
+asymcheck:-
   nl.
 
 /* ------------------------------------------
@@ -170,7 +170,7 @@
   consult('wn_load.pl'),
   check_keys,
   symcheck,
-  antisymcheck,
+  asymcheck,
   check_duplicates,
 %  hypself,
   told.