1 (wiktionary) 2 (nl.wikipedia) 3 (en.wikipedia) 4 (glosbe)

Verbs Nouns Adjectives/Adverbs Pronouns Prepositions Conjunctions
selten (Advanced search)

infrequent {adj} (Not frequent; not happening frequently) it never rains but it pours {proverb} (unfortunate events occur in quantity) misfortunes never come singly {proverb} (proverb) rare {adj} (very uncommon) rare earth {n} (naturally occurring oxides of the lanthanide metals) rare earth element {n} (type of metal) rarely {adv} (not occurring at a regular interval) rarity {n} (measure of the scarcity of an object) rarity {n} (rare object) seldom {adv} (infrequently, rarely) when it rains, it pours {proverb} (if a person encounters bad luck, more bad luck will follow)

Hardly ever have we seen such a night !	Zo'n nacht hebben we zelden gezien!
How did you come by those rare books ?	Hoe kom je aan die zeldzame boeken?
Seldom do I see him .	Ik zie hem zelden.
She is seldom late for school .	Ze komt zelden te laat op school.
We took turns with the driving .	We reden om beurten.
Father seldom comes home before eight .	Vader komt zelden voor achten thuis.
They mistook him for his brother .	Ze zagen hem aan voor zijn broer.
She rarely , if ever , goes out of town .	Ze gaat zelden of nooit de stad uit.
It is rare for him to get angry .	Het komt zelden voor dat hij boos wordt.
He writes to me less and less often these days .	Hij schrijft me tegenwoordig steeds minder vaak.
He seldom , if ever , goes to the movies .	Hij gaat zelden of nooit naar de film.
She seldom goes out .	Ze gaat zelden uit.
He is not seldom ill .	Hij is niet zelden ziek.