mõistlikul
mõistlikul is an Estonian adverb derived from the adjective "mõistlik" which translates to "reasonable," "sensible," or "rational" in English. As an adverb, mõistlikul modifies verbs, adjectives, or other adverbs, indicating that an action or quality is being done or possessed in a reasonable, sensible, or rational manner. It implies a degree of good judgment, practicality, and avoidance of extremes or foolishness.
For example, one might say "ta käitus mõistlikul" meaning "he/she behaved reasonably." This suggests their actions