impractical adj.
1 not sensible or reasonable
VERBS be, prove Such a solution proved impractical. | become | make sth The weight of the machine makes lifting it impractical. | consider sth, deem sth, find sth, regard sth as They found his ideas impractical.
ADV. highly, hopelessly The long flowing dress was highly impractical. | completely, downright, entirely, quite, totally, wholly | rather, somewhat | fundamentally a fundamentally impractical design | obviously
2 not good at everyday jobs
VERBS be, seem
ADV. hopelessly He was hopelessly impractical when it came to planning new projects.
You can also check other dicts: impractical (English, 中文解释 ), wordnet sense, Collins Definition