invariable
adjective /ɪnˈveəriəbl/
/ɪnˈveriəbl/
- always the same; never changing synonym unchanging
- Her routine was invariable.
- his invariable courtesy and charm
- an invariable principle
- This is an invariable law: true at all times and places.
Word Originlate Middle English: from French, or from late Latin invariabilis, from in- ‘not’ + variabilis (from variare, from varius ‘diverse’).