introspective

As an adjective introspective

is examining one's own perceptions and sensory experiences; contemplative or thoughtful about oneself.

As an abbreviation Obs is

obsolete.

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective introspective is

examining one's own perceptions and sensory experiences; contemplative or thoughtful about oneself.

As an adjective introspective is

examining one's own perceptions and sensory experiences; contemplative or thoughtful about oneself.

As adjectives the difference between reflective and introspective

is that reflective is something which reflects, or redirects back to the source while introspective is examining one's own perceptions and sensory experiences; contemplative or thoughtful about oneself.

As an adjective introspective is

examining one's own perceptions and sensory experiences; contemplative or thoughtful about oneself.

As adjectives the difference between visionary and introspective

is that visionary is having vision or foresight while introspective is examining one's own perceptions and sensory experiences; contemplative or thoughtful about oneself.

As a noun visionary

is someone who has visions; a seer.

Obserant is likely misspelled.

Obserant has no English definition.

As an adjective introspective is

examining one's own perceptions and sensory experiences; contemplative or thoughtful about oneself.

As adjectives the difference between introspective and talkative

is that introspective is examining one's own perceptions and sensory experiences; contemplative or thoughtful about oneself while talkative is tending to talk a lot.