This is the 799th most frequent Finnish word.
tärkeintä
"The most important thing."
In this sentence, 'tärkeintä' is in its partitive form, used as the predicate in the sentence to denote the most important aspect of life.
Tärkeintä elämässä on rakkaus.
The most important thing in life is love.
This sentence highlights 'tärkeintä' as the main focal point, implying the ultimate priority of one's happiness.
Tärkeintä on se, että olet onnellinen.
The most important thing is that you are happy.
In this sentence, 'tärkeintä' is used as the partitive singular form of 'tärkein', the superlative of 'tärkeä'. It is used here to describe the concept that being happy is the most important thing in life.