Solution

UNMOVING

2 clues

Motionless

Word class: Common adjective
Nature of clue: Synonym
Difficulty: Very easy
Sources: Boatload Puzzles

Other solutions to Motionless

Still

Word class: Common adjective
Nature of clue: Synonym
Difficulty: Very easy
Sources: Boatload Puzzles

Other solutions to Still

Words are categorized by artificial intelligence: there can be mistakes.