This is the 242nd most frequent Estonian word.
lihtne
Simple.
Here, 'lihtne' is used as an adjective to describe the task as being simple or not difficult.
See ülesanne on liiga lihtne.
This task is too simple.
In this sentence, 'lihtne' is used as an adjective to characterize a solution as straightforward.
Meie eesmärk on tõhus ja lihtne lahendus.
Our goal is an efficient and simple solution.
In this context, 'lihtne' is used as an attributive adjective describing the nature of life as uncomplicated.