defensible
[adjective]
Synonyms: tenable, defendable, justifiable, condonable, excusable, vindicable, warrantable

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Antonyms: indefensible

[TahlilGaran] English Synonym Dictionary ▲

de‧fen‧si‧ble /dɪˈfensəbəl, dɪˈfensɪbəl/ adjective
[Word Family: noun: DEFENCE/DEFENSE, defendant, defender, defensiveness; adjective: DEFENCELESS/DEFENSELESS, defensible ≠ indefensible, defensive; adverb: defensibly ≠ indefensibly, defensively; verb: defend]

1. a defensible opinion, idea, or action seems reasonable, and you can easily support it Antonym : indefensible:
a morally defensible prison system

2. a defensible building or area is easy to protect against attack
—defensibly adverb

[TahlilGaran] Dictionary of Contemporary English ▲