Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

EXAMPLES FROM THE WEB FOR UNACHIEVABLE

A huge "battlefield" stun grenade that encompasses large areas is a dramatic if unachievable illustration.

RELATED WORDS AND SYNONYMS FOR UNACHIEVABLE

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.