kind-hearted, warmhearted, good-natured
Building blocks
hea- - good
-süda- heart
-lik - an adjective-forming ending
So similarly to English kind-hearted, heasüdamlik literally translates to good-hearted.
How to use it:
Describing a person's character:
Estonian: Minu vanaema on heasüdamlik naine, kes alati aitab teisi.
Translation: My grandmother is a kind-hearted woman who always helps others.
Complimenting someone's actions:
Estonian: Õpetaja on väga heasüdamlik, ta alati hoolitseb oma õpilaste eest.
Translation: The teacher is very kind-hearted, she always takes care of her students.
Examples
Printsi tunti kui heasüdamlikku ja õiglast valitsejat
Literally: “Prince was known as kind-hearted and just ruler”
Idiomatically: “The prince was known to be a kind-hearted and just ruler”
Printsi - Noun - Partitive Sg, "Prince"
tunti - Verb - Impersonal Past Positive, "was known"
kui - Conjunction - Indeclinable, "as"
heasüdamlikku - Adjective - Partitive Sg, "kind-hearted"
ja - Conjunction - Indeclinable, "and"
õiglast - Adjective - Partitive Sg, "fair"
valitsejat - Noun - Partitive Sg, "ruler"