un ‧ as ‧ sail ‧ able /ˌʌnəˈseɪləb ə l◂/ BrE AmE adjective formal
not able to be criticized, made weaker, or beaten:
an unassailable argument
The party’s position looked unassailable.
The result gave the team an unassailable lead.
un ‧ as ‧ sail ‧ able /ˌʌnəˈseɪləb ə l◂/ BrE AmE adjective formal
not able to be criticized, made weaker, or beaten:
an unassailable argument
The party’s position looked unassailable.
The result gave the team an unassailable lead.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012