What is an antonym for intimation?

There isn't a single perfect antonym for "intimation" because it has a few different meanings. Here are some options depending on the context:

If "intimation" means a hint or suggestion:

* Explicitness

* Directness

* Clarity

* Openness

If "intimation" means a threat or warning:

* Assurance

* Reassurance

* Comfort

* Guarantee

If "intimation" means a feeling of being told something:

* Ignorance

* Unawareness

* Uninformed

The best antonym will depend on the specific context in which "intimation" is used.