German Phrase
Das war eine coole Erfahrung.
Meaning
The sentence translates to “That was a cool experience.” It conveys that something that just happened was enjoyable, interesting, or impressive, and the speaker feels a positive, informal reaction.
When to use
Use this phrase right after an event, activity, trip, concert, or any situation that left a good impression. It’s informal, so it fits conversations with friends, classmates, or colleagues in a relaxed setting.
✦Grammar Breakdown
DaswareinecooleErfahrung.
Das (demonstrative pronoun)
Used here as a neutral demonstrative pronoun meaning “that”. It is in nominative case, matching the subject of the sentence.
war (sein, past tense)
The simple past (Präteritum) of the verb “sein”. It links the subject to the predicate and indicates a completed state in the past.
eine (indefinite article)
Feminine nominative singular indefinite article, agreeing with the noun “Erfahrung”.
coole (adjective with weak ending)
The adjective “cool” borrowed from English. After an indefinite article it takes the weak ending –e in nominative feminine singular.
Erfahrung (noun, feminine)
Means “experience”. In this sentence it is the subject complement, describing what “that” was.
🗨In Conversation
Das war eine coole Erfahrung.
That was a cool experience.
Ja, ich habe das auch total genossen!
Yes, I really enjoyed it too!
✕Common Mistakes
Das war eine coolen Erfahrung.
After the indefinite article “eine” the adjective takes the weak ending –e, not –en.
Das war ein coole Erfahrung.
“Erfahrung” is feminine, so the article must be “eine”, not the masculine “ein”.
Das ist eine coole Erfahrung.
The sentence refers to a past event, so the past tense “war” is required, not the present “ist”.
↔Alternatives
Das war ein tolles Erlebnis.
That was a great experience.
Das war eine spannende Erfahrung.
That was an exciting experience.
Das war eine interessante Erfahrung.
That was an interesting experience.
Cultural Tip
“Cool” is an English loanword that has become fully natural in everyday German, especially among younger speakers. While “Erfahrung” is a fairly neutral word, “Erlebnis” often feels more vivid and is used for memorable events. In formal writing you might replace “coole” with “interessante” or “aufregende”.

