Synonyms of tenable

1 Syllable
strong, sound
2 Syllables
viable
3 Syllables
credible, reliable, rational, plausible, trustworthy, arguable, secure
4 Syllables
believable, impregnable, excusable, defensible, condonable, defendable, vindicable, remissible, maintainable, warrantable, justifiable, remittable
5 Syllables
exculpatory, vindicatory