More vexatious

• More difficult check reviewed on god
• Less solvable
• More controversial or vexatious, as a problem
• More complex
• More prickly

Wiktionary Word definitions in Wiktionary
a. (en-comparative of: thorny )

WordNet Word definitions in WordNet
adj. bristling with perplexities; "the thorny question of states' rights" having or covered with protective barbs or quills or spines or thorns or setae etc.; "a horse with a short bristly mane"; "bristly shrubs"; "burred fruits"; "setaceous whiskers" [syn: ...

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Thorny \Thorn"y\, a. [Compar. Thornier ; superl. Thorniest .] Full of thorns or spines; rough with thorns; spiny; as, a thorny wood; a thorny tree; a thorny crown. Like a thorn or thorns; hence, figuratively, troublesome; vexatious; harassing; perplexing. ...