So gradual as not to be noticed as in "Little by little the stone was imperceptibly worn away by the feet of the visitors"
The prefix that can be added to "imperceptibly" is "un-".
You could say... She could barley see the slope of the road; it's imperceptibly made it difficult to spot. I hope this helps!
imperceptibly suffix -ly
yes
Imperceptible means impossible to perceive. She could hear an almost imperceptible chuckle from the back of the room during her speech.
You may mean 'infiltration' , which means to enter gradually and imperceptibly by stealthy methods.
So gradual as not to be noticed as in "Little by little the stone was imperceptibly worn away by the feet of the visitors"
Imperceptibly means so slightly , hardly or barely that it is difficult to perceive an action or behavior
When visiting another country and not knowing the language, it is very imperceptible to understand someone who is talking to you.
Synonym: lightly, hardly noticeable, imperceptibly, inappreciably, inconsiderably Antonym: a lot, considerably, greatly
A fly that flies into, and is squashed against the windscreen, will slow the lorry down almost imperceptibly.
It was a mid-1960's Volkswagen Beetle. In all probability it was several Beetles, possibly of varying years (Beetles change almost imperceptibly from year to year).