unstable?
Lanky
Hard is a synonym for tall when tall means difficult or not easy. For example, that is a hard (i.e., tall or difficult) order to follow.
Tall
high
"As tall as" is often the beginning of a height descriptive or can be the beginning of a height simile. A thing might be as tall as an elephant or as tall as a cat.
rangy
"Lanky" is a synonym for "thin" or "gangly," as they all describe someone who is tall and thin with long limbs.
sarah , plain and tall
Very high refers to something extremely tall or vertically imposing in height. A synonym for very high that starts with the letter t is towering.
Taller than you.
pillar