What does "underappreciate" mean?

To not hold in sufficiently high esteem.

What is a synonym for "underappreciate"?

Common synonyms include: underestimated, undervalue, undervalues, undervaluing.

verb

verb ·Rare ·Advanced level

Verb

1
To not hold in sufficiently high esteem. transitive
"Yet the beauty of Galahs is still often underappreciated."
2
To not gain in value sufficiently. intransitive

"Yet the beauty of Galahs is still often underappreciated."

From under- + appreciate.