Meaning of the word "it is ill striving against the stream" in English

What does "it is ill striving against the stream" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

it is ill striving against the stream

US /ɪt ɪz ɪl ˈstraɪvɪŋ əˈɡenst ðə striːm/
UK /ɪt ɪz ɪl ˈstraɪvɪŋ əˈɡeɪnst ðə striːm/
"it is ill striving against the stream" picture

Idiom

it is difficult or unwise to oppose the general trend, public opinion, or a powerful force

Example:
He tried to change the company's culture alone, but soon realized it is ill striving against the stream.
Don't argue with the board's unanimous decision; it is ill striving against the stream.