Synonyms of the word 
TENABLENESS → PLAUSIBILITY - PLAUSIBLENESS - REASONABLENESS - TENABILITY
tenableness
- n. The quality of being tenable; tenability.
plausibility
- n. The quality of being plausible; speciousness.
- n. Anything plausible or specious.
- n. (obsolete) Something worthy of praise.
plausibleness
- n. The state or quality of being plausible.
reasonableness
- n. (uncountable) The state or characteristic of being reasonable.
- n. (countable) A reasonable action or behaviour.
tenability
- n. The property of being tenable.
If you are interested in words, visit the following sites :
- wiktionary.org/tenableness For complete definition of a word
- 1word.ws/tenableness to play with words, suffixs, prefixs, etc.