if in doubt

/ɪf ɪn dˈaʊt/

if in doubt

‌used to offer advice or instructions to someone who is incapable of making decisions

Examples

1. If in doubt, portion mark everything.

2. If in doubt, portion mark everything.

3. You might not want to use relaxed pronunciation and in fact, if in doubt, don't do it because it can be seen as informal.

4. If in doubt, always consult your doctor before taking a thermogenic drink.