For example, when regulation prevents a developer from building rental property, the value of existing or reasonably ascertainable leases represents an opportunity cost of the prohibition to the developer.
Source: wiktionary
Ranked by relevance and common usage.
Keep "ascertainable" when the sentence already sounds natural, when a synonym would add unintended emphasis, or when readers need the most familiar wording. A synonym should clarify or sharpen the message, not simply make the sentence look more varied.
If two options seem close, choose the one that best matches the audience and purpose of the sentence.
Choose a synonym only if it keeps the core idea of "ascertainable" intact in the sentence you are editing.
Check whether the replacement sounds more formal, casual, emotional, technical, or forceful than the original word.
Read the full sentence after the swap. Keep the synonym only when the sentence becomes clearer or more precise.
Review note: Synonym lists are ranked with lexical data and reviewed for practical writing value. Use the comparison notes, sentence evidence, and source labels together; a high-ranking synonym can still be wrong when the audience, register, or grammar changes.
After choosing a replacement for "ascertainable", read the sentence once for meaning and once for rhythm. The best synonym should feel natural in the full sentence, not only accurate in a word list.
If the synonym makes the sentence slower, vaguer, or more dramatic than intended, keep "ascertainable" or choose a simpler alternative from the closest-match group.
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
3 total sentences available.
For example, when regulation prevents a developer from building rental property, the value of existing or reasonably ascertainable leases represents an opportunity cost of the prohibition to the developer.
Source: wiktionary
The easily ascertainable fact, they point out, is that what they feel is not anger toward parents speaking Lennon's name, but only contempt for the few so ignorant of cultural history that they think it was John Lennon, instead of Paul McCartney, who sang "Why Don't We Do It in the Road?"
Source: wiktionary
The real responsibility, the reasons behind the assassination, were still in dispute half a century later. But even events that are less crucial are still often incompletely ascertainable.
Source: wiktionary
Closest matches include discoverable, appreciable, comprehensible, conceivable, decipherable.
Compare the replacement against real sentence context. This entry includes sample sentences so you can check tone, grammar, and meaning before swapping words.