Kõlbama
Kõlbama is an Estonian verb that translates to "to be suitable," "to be worthy," or "to be good enough." It generally implies that something meets a certain standard or is acceptable for a particular purpose. The verb can be used in various contexts, from assessing the quality of an object to determining the eligibility of a person.
For example, one might say that a tool is not kõlbama if it is broken or inadequate
The opposite of kõlbama could be expressed as "mitte kõlbama" (not suitable) or through words indicating unsuitability