in·sub·stan·tial 
(ĭn′səb-stănshəl)
(ĭn′səb-stănshəl)adj.
1. Not firm or solid; weak or flimsy: a shed made of insubstantial materials.
2. Very small or negligible, as in importance, size, or amount: an insubstantial volume of traffic.
3. Lacking or appearing to lack substance or reality: "the insubstantial vapor of an autumn field" (Loren Eiseley).
in′sub·stan′ti·ali·ty (-shē-ălĭ-tē) n.
- alligator
- alligator clip
- alligatoring
- alligator pear
- alligator snapping turtle
- alligator weed
- all-importance
- all-important
- all in
- all in all
- all-inclusive
- all-inclusiveness
- alliterate
- alliteration
- alliterative
- alliteratively
- alliterativeness
- allium
- all/just the same
- all kinds of
- all-night
- all nighter
- all-nighter
- allo
- allo-