Answer | Crossword Clue |
---|---|
REQD | Not optional: Abbr. |
REQ | Not optional: Abbr. |
REQ | Not optional: abbr. |
ESSENTIAL | Not optional |
NECESSARY | Not optional |
IMPERATIVE | Not optional |
NEEDED | Not optional |
OBLIGATORY | Not optional |
MUST | It's not optional |
NEED | It's not optional |
NEEDS | They're not optional |
MUSTS | They're not optional |
AMUST | Something that's not optional |