Solution

UNBOUNDED

4 clues

Endless

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

Other solutions to Endless

Infinite

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

Other solutions to Infinite

Limitless

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

Without limits

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

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