I am seeing the term "unmeasurable" used occasionally to describe measurements that could not be taken due to unusual circumstances. For example, audio qualities might not be measurable if there is a high degree of signal noise in the sample. Most dictionaries do not include this term, although "immeasurable" is included. However, I feel that "immeasurable" implies that something was so large or great that numbers could not be applied to it (e.g. immeasurable loss / damage / wealth). Is "unmeasurable" a term that I should add to my own lexicon?
Immeasurable implies that something is too large or extensive to measure. However, unmeasurable implies that something cannot be measured objectively. The terms are subtly different in the usage and I suppose you should add it to your lexicon.
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