rätselhaft (bn):
geheimzinnig(en) having unknown qualities.
(fr) Qui est fort obscur., raadselachtig(en) difficult to understand or explain; enigmatic or confusing; perplexing.
(en) having unknown qualities., mysterieus(en) having unknown qualities., verwarrend(en) difficult to understand or explain; enigmatic or confusing; perplexing.
Via: Dbnary en WikiWoordenboeken
Via: Memodata.com