It means that people often ignore inconvenient facts or truths , which force them to think about something they take for granted as correct or are sure of something being unquestionably right ,or shake their beliefs or sense of right/wrong . Hence they continue on their old beliefs or moral values as if they never discovered the uncomfortable truth rather than deal with the trouble of re-aligning one's stand or change earlier beliefs.
No, "stumble" is not an onomatopoeia. An onomatopoeia is a word that phonetically imitates a sound associated with its meaning, like "buzz" or "clang." "Stumble" describes an action or movement, rather than mimicking a specific sound.
Use stumble in a sentence.
The Swanee Quintet "Stumble and Fall"
Stumble into Grace was created in 2003-02.
Long enough for ted to panic, save himself and stumble to his hotel!
The meaning of the word tumbling as used in the nursery rhyme Jack and Jill is to lose balance and fall, stumble, take a spill, or topple over.
When I was walking through the woods, I tripped on a branch and began to stumble.
The Filipino word "matisod" means to stumble or trip over something due to a sudden obstacle or uneven surface. It is often used to describe physical clumsiness or unexpected hindrances while walking.
Clinic of Stumble - 1947 was released on: USA: 1947
Depending on how it's used in a sentence, "stumble" can be either a verb or a noun.
stumble
Your question seem quite vage could you add a little more ? does this happed from start up or does this happen afet you have been driving it at high rms for a while ?