the.com/thin
The quality of taking up less space than you expected, for better or worse.
means Having little width or thickness, or being sparse, weak, or unconvincing.
from From Old English 'thynne,' tracing back to a Proto-Indo-European root meaning 'stretched,' the same stretch behind 'tenuous' and 'tendon.'
Excuse gradeA weak alibi is called thin, not narrow
Air pressureThin air is real—less oxygen, not less width
Stretch cousinShares roots with tendon, tenuous, and extend