The English term "vain, futile, conceited" matches the Dutch term "ijdel"

other english words that include "vain" : dutch :
Louvain Leuven
futile, good-for-nothing, useless, vain nutteloos
vain, futile vergeefs
other english words that include "futile" : dutch :
futile, good-for-nothing, useless, vain nutteloos
vain, futile vergeefs
other english words that include "conceited" : dutch :
conceited nietig
unimportant, conceited onbelangrijk