1. Obligatoire.
2. Nécessaire.
ETYM French crucial, from Latin crux, crucis, cross, torture. Related to Cross.
1. Having crucial relevance; SYN. relevant.
2. Having the power or quality of deciding; SYN. deciding, determinant, determinative, determining.
3. Of extreme importance; vital to the resolution of a crisis; SYN. important.
ETYM Latin imperativus, from imperare to command; pref. im- in + parare to make ready, prepare: cf. French impératif. Related to Perade, Empire.
1. Requiring attention or action.
2. (Grammar) Relating to verbs in the imperative mood.
1. Nécessité. Des impératifs économiques.
2. (Linguistique) Mode verbal de l'ordre.